{"id":331,"date":"2022-01-21T16:31:59","date_gmt":"2022-01-21T15:31:59","guid":{"rendered":"https:\/\/www.beautydecoded.com\/?page_id=331"},"modified":"2026-05-30T22:55:12","modified_gmt":"2026-05-30T20:55:12","slug":"vitamin-c","status":"publish","type":"page","link":"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/","title":{"rendered":"Vitamin C: Skin Benefits"},"content":{"rendered":"<div class=\"bd-brand\"><style>\n.bd-brand .bd-hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:8px}\n.bd-brand .bd-hub-card{display:flex;flex-direction:column;gap:8px;padding:24px 26px;background:rgba(255,255,255,0.6);border:1px solid rgba(255,255,255,0.95);border-radius:22px;backdrop-filter:blur(20px);text-decoration:none;transition:transform 0.25s ease,box-shadow 0.25s ease;box-shadow:0 10px 40px rgba(42,36,56,0.04)}\n.bd-brand .bd-hub-card:hover{transform:translateY(-4px);box-shadow:0 22px 55px rgba(42,36,56,0.1)}\n.bd-brand .bd-hub-card-tag{font-family:var(--bd-sans);font-size:11px;font-weight:600;color:var(--bd-accent);letter-spacing:0.06em;text-transform:uppercase}\n.bd-brand .bd-hub-card h3{font-family:var(--bd-serif);font-weight:500;font-size:20px;line-height:1.2;color:var(--bd-ink);letter-spacing:-0.01em;margin:0}\n.bd-brand .bd-hub-card-arrow{font-family:var(--bd-serif);font-style:italic;font-size:14px;color:var(--bd-accent);margin-top:auto;padding-top:4px}\n.bd-brand .bd-prob-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:8px}\n.bd-brand .bd-prob-card{padding:26px 28px;background:rgba(255,255,255,0.6);border:1px solid rgba(255,255,255,0.95);border-radius:22px;backdrop-filter:blur(20px);box-shadow:0 10px 40px rgba(42,36,56,0.04)}\n.bd-brand .bd-prob-card .bd-prob-num{font-family:var(--bd-serif);font-style:italic;font-size:26px;color:var(--bd-accent);line-height:1}\n.bd-brand .bd-prob-card h4{font-family:var(--bd-serif);font-weight:500;font-size:20px;line-height:1.2;color:var(--bd-ink);letter-spacing:-0.01em;margin:10px 0 8px}\n.bd-brand .bd-prob-card p{font-family:var(--bd-sans);font-size:14.5px;line-height:1.6;color:var(--bd-ink-soft,#5a5560);margin:0}\n.bd-brand>p:empty{display:none!important}\n.bd-brand>p{margin:0!important}\nhtml body .bd-brand .bd-section{padding:48px 0 !important}\nhtml body .bd-brand .bd-hero{padding-bottom:8px !important}\nhtml body .bd-brand .bd-hero .bd-hero-meta{margin-bottom:0 !important}\nhtml body .bd-brand .bd-dark{margin-top:24px !important;margin-bottom:24px !important}\nhtml body .bd-brand .bd-final{padding-top:48px !important;padding-bottom:48px !important;margin-top:0 !important}\n@media (max-width:900px){html body .bd-brand .bd-section{padding:36px 0 !important}html body .bd-brand .bd-hero{padding-top:56px !important}html body .bd-brand .bd-eyebrow{margin-top:8px}}\n<\/style><section class=\"bd-hero\" style=\"padding-bottom:8px !important;padding-top:56px !important\"><div class=\"bd-wrap\"><span class=\"bd-eyebrow\"><a href=\"https:\/\/www.beautydecoded.com\/en\/ingredient\/\" style=\"color:inherit;text-decoration:none\">Guide skincare - Ingredients<\/a><\/span><h1>Vitamin C for the face - <em>benefits and how to choose it<\/em> according to a doctor and analyses by BeautyDecoders.<\/h1><p class=\"bd-hero-sub\">Vitamin C is a major antioxidant in cosmetics: it reduces blemishes, brightens the complexion, stimulates collagen and protects against sun damage in addition to SPF. For a serum to be effective, you need a pure form (L-ascorbic acid) with a low pH (around 3.5), a concentration of 10 to 20 %, an opaque, airtight bottle, and ideally the combination of vitamin E + ferulic acid. Use in the morning, under sun protection.<\/p><div class=\"bd-hero-meta\"><div class=\"bd-hero-meta-item\"><span>Family<\/span><strong>Antioxidant (L-ascorbic acid)<\/strong><\/div><div class=\"bd-hero-meta-item\"><span>Method<\/span><strong>Verdict Sensitivity - Dr David's rule<\/strong><\/div><div class=\"bd-hero-meta-item\"><span>Selection<\/span><strong>6 treatments rated by BeautyDecoders<\/strong><\/div><\/div><\/div><\/section><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Mode of action<\/span><h2>The mechanism of action of <em>vitamin C<\/em><\/h2><p class=\"bd-lead\">Vitamin C is naturally present in the body, but cannot be produced or stored. It diminishes spots and wrinkles, and brightens the complexion. Its four main actions:<\/p><div class=\"bd-prob-grid\"><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">01<\/div><h4>Powerful antioxidant<\/h4><p>It neutralizes free radicals which, through oxidative stress, damage collagen and elastin, accelerating wrinkles, sagging and loss of firmness.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">02<\/div><h4>Enhanced sun protection<\/h4><p>An antioxidant applied in addition to SPF increases protection against UV damage by 30 %, limiting deep cellular changes (wrinkles, spots, cancer).<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">03<\/div><h4>Collagen stimulation<\/h4><p>It facilitates the assembly of collagen molecules and prevents their destruction. With daily use, it boosts collagen concentration, improves texture and reduces wrinkles.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">04<\/div><h4>Action on stains<\/h4><p>It regulates melanocyte activity: useful against post-acne, post-sun spots and melasma, and to brighten the complexion.<\/p><\/div><\/div><\/div><\/section><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">The right choice<\/span><h2>5 criteria for a <em>good serum<\/em><\/h2><div class=\"bd-prob-grid\"><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">01<\/div><h4>Bottle stability<\/h4><p>L-ascorbic acid oxidizes in light and air: an opaque, airtight bottle is essential. If it turns dark orange or brown, it's oxidized - throw it out, as it's harmful to the skin.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">02<\/div><h4>Penetration<\/h4><p>Pure vitamin C is hydrophilic, while the skin is protected by a hydrophobic lipid layer, making it difficult for it to penetrate.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">03<\/div><h4>The pH<\/h4><p>To penetrate deeply, the pH must be low, optimally around 3.5. A serum this acidic may sting, but that's the price of pure vitamin C: less acidic, it would be ineffective.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">04<\/div><h4>Concentration<\/h4><p>Absorption is optimal at 20 %, but may then irritate. 15 % is the right compromise (range 5 to 20 %), starting low then increasing according to tolerance.<\/p><\/div><div class=\"bd-prob-card\"><div class=\"bd-prob-num\">05<\/div><h4>Associated assets<\/h4><p>Its effects are enhanced tenfold by vitamin E and ferulic acid: opt for serums containing them. For reactive skin, ceramides or hyaluronic acid are a plus.<\/p><\/div><\/div><\/div><\/section><!-- ===== S\u00c9LECTION VITAMINE C PURE ===== --><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Selection - pure vitamin C<\/span><h2>Which serums to <em>pure vitamin C<\/em> ?<\/h2><p class=\"bd-lead\">Here are three representative pure vitamin C serums, with BeautyDecoded scores and user feedback. For a full comparison, see the selection of <a href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/best-serum\/\">best vitamin C serums<\/a>.<\/p><div class=\"bd-alert bd-alert-info\"><span class=\"bd-alert-icon\">\u26a0<\/span><div>The ratings and review excerpts come from users of the BeautyDecoded application. These reviews are not verified. The Sensitivity Verdict applies the Dr David Rule: a negative sensitive skin score indicates increasing caution, as pure vitamin C at low pH can sting reactive skin.<\/div><\/div><!-- Produit 1 : G&G C Glow --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Pure Vitamin C 15% - Geek &amp; Gorgeous<\/span><h3>Geek &amp; Gorgeous C Glow Vitamin C 15%<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"bd-score\">4,76\/5<\/span><span class=\"bd-count\">(48 reviews - solid base)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-mixed\">Low-price reference - to be introduced gently<\/span><\/div><p>Serum with 15 % of pure vitamin C, at a very affordable price, the most commented on of the selection (48 reviews) and a favorite on the networks. Anti-aging and blemishes scores <strong>90,1<\/strong>. Sensitive skin score <strong>-3.0 - unsuitable<\/strong>, To be introduced gradually, due to its acidic pH. A light, non-greasy texture, many people use it continuously; reactive skin types should start slowly.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">77<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">77<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">77<\/div><\/div><div class=\"bd-score-item bd-low\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">-3<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><\/div><div class=\"bd-sv bd-sv-poor\"><strong>\u2715 Verdict sensitivity<\/strong> Not suitable for sensitive skin (score: -3.0). Introduce gradually, in the morning before SPF.<\/div><div class=\"bd-quotes-label\">User feedback (48 opinions - representative extracts)<\/div><div class=\"bd-quotes\"><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abThis may be my twentieth bottle; you don't change a winning team.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abAn inexpensive and really effective vitamin C serum, light texture.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abI love it, plus it's non-greasy.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605<\/span>\u00abAffordable price and pleasant texture, to be introduced gently if skin is sensitive.\u00bb<\/div><\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> Pure vitamin C 15 % at an affordable price (anti-aging and spots 90.1), light texture popular. Not suitable for sensitive skin (-3.0): gradual introduction, in the morning under SPF. 4.76\/5 out of 48 reviews.<\/div><\/div><!-- Produit 2 : Paula's C15 --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Vitamin C 15% + E + ferulic - Paula's Choice<\/span><h3>Paula's Choice C15 Super Booster 15% Vitamin C<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"bd-score\">4,80\/5<\/span><span class=\"bd-count\">(15 reviews)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-top\">The ideal formula - E + ferulic + peptides<\/span><\/div><p>The reference booster: 15 % of pure vitamin C combined with vitamin E, ferulic acid and peptides, exactly the ideal formula described above. Excellent stability thanks to opaque, hermetically sealed packaging. Anti-ageing scores and spots <strong>90,1<\/strong>. Sensitive skin score <strong>-2.0 - unsuitable<\/strong>. Very effective on dark spots and the radiance of mature skin according to feedback, to be applied every morning under SPF.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">91<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">-2<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><\/div><div class=\"bd-sv bd-sv-poor\"><strong>\u2715 Verdict sensitivity<\/strong> Not suitable for sensitive skin (score: -2.0). In the morning before SPF.<\/div><div class=\"bd-quotes-label\">User feedback (15 opinions - representative extracts)<\/div><div class=\"bd-quotes\"><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abThe best in its class, my mature skin is brighter and my spots are diminishing.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abExcellent vitamin C, perfect stability thanks to the airtight, opaque bottle.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abMy problem is brown spots: this serum, with a total screen, makes all the difference.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605<\/span>\u00abEffective product that I apply every morning, I just regret its price.\u00bb<\/div><\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> The ideal formula: 15 % vitamin C + E + ferulic + peptides, excellent stability (anti-aging and blemishes 90.1). Not suitable for sensitive skin (-2.0): every morning under SPF. 4.80\/5 out of 15 reviews.<\/div><\/div><!-- Produit 3 : Vichy --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Pure vitamin C 16% - Vichy<\/span><h3>Vichy Liftactiv 16% Vitamin C<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"bd-score\">5,00\/5<\/span><span class=\"bd-count\">(1 review - indicative rating)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-mixed\">Pharmacy alternative - note to be confirmed<\/span><\/div><p>Serum from a French parapharmacy with 16 % of pure vitamin C, the alternative easily found in pharmacies for those who prefer a brand accessible in pharmacies. High anti-aging and blemish scores (<strong>90,1<\/strong>). Sensitive skin score <strong>-2.75 - unsuitable<\/strong>, To be introduced gradually, like any high-concentration pure vitamin C. Apply in the morning under sun protection.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">91<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">91<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">-2,75<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">90,1<\/div><\/div><\/div><div class=\"bd-sv bd-sv-poor\"><strong>\u2715 Verdict sensitivity<\/strong> Not suitable for sensitive skin (score: -2.75). Gradual introduction, in the morning under SPF.<\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> Pure vitamin C 16 % available in pharmacies (anti-aging and spots 90.1). Not suitable for sensitive skin (-2.75). Only one BeautyDecoded review to date: indicative rating to be confirmed; the only feedback describes it as perfect for dry, sensitive skin.<\/div><\/div><\/div><\/section><!-- ===== S\u00c9LECTION D\u00c9RIV\u00c9S ===== --><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Selection - Derivatives for sensitive skin<\/span><h2>Derivatives <em>softer<\/em><\/h2><p class=\"bd-lead\">If pure vitamin C at low pH irritates you, derivatives are an excellent alternative: more stable, gentler, without acidic pH, and easy to combine. Here are three derivative serums that are well tolerated by sensitive skin. For details of the different derivatives, see the page on <a href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/vitamin-c-derivatives\/\">vitamin C derivatives<\/a>.<\/p><!-- Produit 4 : Mim\u00e9tique --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Niacinamide + ascorbyl glucoside - Mimetic<\/span><h3>Mimetic Skin Revive (niacinamide + vitamin C derivative)<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"bd-score\">4,80\/5<\/span><span class=\"bd-count\">(5 reviews)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-top\">Radiance without acid pH - even for rosacea<\/span><\/div><p>A serum that combines niacinamide and ascorbyl glucoside (a gentle, stable derivative of vitamin C), plus soothing oatmeal. The ideal combination for sensitive or reactive skin that wants the radiance of vitamin C without the harshness of acidic pH. Sensitive skin score <strong>0.0 - adapted<\/strong>. Moisturizing, plumping and effective on blemishes according to feedback, well tolerated even in cases of rosacea; some reviews consider it a little expensive.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">0<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">76,5<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">66,3<\/div><\/div><\/div><div class=\"bd-sv bd-sv-ok\"><strong>\u2713 Verdict sensitivity<\/strong> Suitable for sensitive skin (score: 0.0). Well tolerated, even for rosacea.<\/div><div class=\"bd-quotes-label\">User feedback (5 reviews - representative extracts)<\/div><div class=\"bd-quotes\"><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abVery moisturizing, gives radiance, no inflammatory reaction despite my rosacea, quite the opposite.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abThe best serum ever: niacinamide and stabilized vitamin C, perfect for the morning.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605\u2605<\/span>\u00abA few drops are all you need, it plumps up the skin and it's very good as an anti-dark spot.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605<\/span>\u00abGood serum but not miraculous, let's be honest, and the price is high.\u00bb<\/div><\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> Niacinamide + ascorbyl glucoside + oatmeal, the radiance of vitamin C without the acidic pH (adapted 0.0), even for rosacea. A few drops are enough; considered a little expensive. 4.80\/5 out of 5 reviews.<\/div><\/div><!-- Produit 5 : Theramid --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Ascorbyl tetraisopalmitate + E + ferulic - Theramid<\/span><h3>Theramid C-Tetra E.F. (fat-soluble + E + ferulic derivative)<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605\u2605<\/span><span class=\"bd-score\">4,25\/5<\/span><span class=\"bd-count\">(2 reviews - indicative rating)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-mixed\">Stable fat-soluble derivative - antioxidant combination<\/span><\/div><p>Serum with ascorbyl tetraisopalmitate, a stable, fat-soluble derivative of vitamin C, combined with vitamin E and ferulic acid, exactly the antioxidant combination we're looking for. Good anti-ageing scores (<strong>83,3<\/strong>) and spots (<strong>86,7<\/strong>). Sensitive skin score <strong>0.0 - adapted<\/strong>, Well tolerated, even by sensitive skin. A rather strong odor was reported. Product not yet reviewed, rating to be confirmed.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">73,5<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">91<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">0<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">83,3<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">86,7<\/div><\/div><\/div><div class=\"bd-sv bd-sv-ok\"><strong>\u2713 Verdict sensitivity<\/strong> Suitable for sensitive skin (score: 0.0). Well tolerated; fairly strong odor reported.<\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> Stable liposoluble derivative + E + ferulic, the sought-after antioxidant combination (anti-aging 83.3, spots 86.7, adapted 0.0). Few reviews to date (2): indicative rating; reservations about fragrance. 4,25\/5.<\/div><\/div><!-- Produit 6 : Aroma-Zone --><div class=\"bd-product\"><div class=\"bd-product-top\"><div><span class=\"bd-product-cat\">Vitamin C 10% + astaxanthin - Aroma-Zone<\/span><h3>Aroma-Zone Vitamin C 10% &amp; Astaxanthin<\/h3><div class=\"bd-product-meta\"><span class=\"bd-rating\"><span class=\"bd-stars\">\u2605\u2605\u2605<\/span><span class=\"bd-score\">3,13\/5<\/span><span class=\"bd-count\">(38 reviews - solid base)<\/span><\/span><\/div><\/div><span class=\"bd-product-badge bd-badge-flop\">Gentle concentration - uneven effectiveness<\/span><\/div><p>French serum with 10 % of vitamin C and antioxidant astaxanthin, at a lower price and with a milder concentration, so better tolerated. Sensitive skin score <strong>-0.5 - slight caution<\/strong>, one of the mildest. Immediate healthy-glow effect for some; it's also the lowest-rated of the base, with several reviews not noting any marked effect, a reminder that at lower concentrations, efficacy depends very much on the formulation and freshness of the product.<\/p><div class=\"bd-scores-label\">Scores BeautyDecoded<\/div><div class=\"bd-scores\"><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Dry skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Oily skin<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-high\"><div class=\"bd-score-item-label\">Normal to oily<\/div><div class=\"bd-score-item-value\">84<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Sensitive skin<\/div><div class=\"bd-score-item-value\">-0,5<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Anti-aging<\/div><div class=\"bd-score-item-value\">51<\/div><\/div><div class=\"bd-score-item bd-mid\"><div class=\"bd-score-item-label\">Stains<\/div><div class=\"bd-score-item-value\">59,5<\/div><\/div><\/div><div class=\"bd-sv bd-sv-caution\"><strong>\u26a0 Sensitivity verdict<\/strong> Slight caution (score: -0.5). One of the smoothest of the selection.<\/div><div class=\"bd-quotes-label\">User feedback (38 reviews - representative extracts)<\/div><div class=\"bd-quotes\"><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605<\/span>\u00abInstant healthy-glow effect, a little boost in the morning on my sleepy skin.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605\u2605<\/span>\u00abSatisfied, I took it for my facial spots and am buying it again.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605\u2605<\/span>\u00abThe serum is okay but had no particular effect on me.\u00bb<\/div><div class=\"bd-quote\"><span class=\"bd-quote-rating\">\u2605\u2605<\/span>\u00abNo effect on my skin, and a little fluffy on application.\u00bb<\/div><\/div><div class=\"bd-verdict\"><strong>Verdict -<\/strong> Vitamin C 10 % + astaxanthin at a mild concentration, better tolerated (-0.5, one of the mildest). But the lowest rated of the base: at this concentration, efficacy depends on formulation and freshness. 3.13\/5 out of 38 reviews.<\/div><\/div><\/div><\/section><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Instructions for use<\/span><h2>How to integrate it into <em>your routine<\/em><\/h2><p class=\"bd-lead\">Good news: vitamin C is much easier to use than retinol. No matter what your age or skin type, anyone can use it. To begin with, start with a low concentration of pure vitamin C or a derivative, then increase to 15 or even 20 % once your skin is accustomed to it. Ideally in the morning, under sun protection, to take advantage of its action against free radicals and UV rays. The basic routine: gentle cleansing, vitamin C, moisturizer (hyaluronic acid gel), then SPF in summer and winter. The first effects on radiance can be seen in one month, on collagen in three months, with a lifelong preventive benefit. For application details, see <a href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/serum-vitaminec-conseils\/\">5 tips for applying vitamin C like a pro<\/a>.<\/p><div class=\"bd-alert bd-alert-info\"><span class=\"bd-alert-icon\">\u26a0<\/span><div>Four situations call for caution with pure vitamin C: very sensitive skin that cannot tolerate acidic pH; starting a retinol treatment (it's best to pause the vitamin C); rosacea, which vitamin C can aggravate; severe acne flare-ups, where the altered barrier can become irritated. None of these is a definite contraindication: take it easy, use low concentrations, or opt for a higher concentration. <a href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/vitamin-c-derivatives\/\">derivative<\/a>.<\/div><\/div><\/div><\/section><!-- ===== CTA APP (bd-final standard) ===== --><section class=\"bd-final\" style=\"padding-top:48px !important;margin-top:0 !important\"><div class=\"bd-wrap\"><div class=\"bd-final-inner\"><div class=\"bd-section-label\">Further information<\/div><h2>Find the right vitamin C for <em>your skin profile<\/em>.<\/h2><p>The BeautyDecoded application lets you scan any cosmetic product to visualize its suitability for your skin type and needs, based on INCI analysis.<\/p><div class=\"bd-cta-wrap\" style=\"justify-content: center;\"><a href=\"https:\/\/beautydecoded.go.link\/88eZ2\" class=\"bd-cta\" target=\"_blank\" rel=\"noopener\">Discover BeautyDecoded<\/a><\/div><div class=\"bd-cta-meta\" style=\"margin-top: 16px;\">Application available on iOS and Android<\/div><\/div><\/div><\/section><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Frequently asked questions<\/span><h2>Your questions about <em>vitamin C<\/em><\/h2><div class=\"bd-faq-list\"><details class=\"bd-faq-item\"><summary>What concentration of vitamin C should I choose?<\/summary><div class=\"bd-faq-answer\">Absorption is optimal at 20 %, but this concentration can be irritating. A concentration of 15 % offers the best compromise between efficacy and tolerance. If you're just starting out or have sensitive skin, start lower (5 to 10 %) and work your way up.<\/div><\/details><details class=\"bd-faq-item\"><summary>Morning or evening for vitamin C?<\/summary><div class=\"bd-faq-answer\">Preferably in the morning, under sun protection: its antioxidant action reinforces the skin's defense against UV rays and free radicals during the day. It can also be used in the evening, but the morning maximizes its protective action.<\/div><\/details><details class=\"bd-faq-item\"><summary>How can I tell if my serum is oxidized?<\/summary><div class=\"bd-faq-answer\">A pure vitamin C serum that turns dark orange or brown is oxidized and has lost its effectiveness: it should be discarded. To limit oxidation, choose an opaque, airtight bottle (pump), and use the serum within a few weeks of opening.<\/div><\/details><details class=\"bd-faq-item\"><summary>Can vitamin C and retinol be combined?<\/summary><div class=\"bd-faq-answer\">Yes, but not at the same time: pure vitamin C needs a low pH, retinol a higher one. The two are separated by applying vitamin C in the morning and retinol in the evening. <a href=\"https:\/\/www.beautydecoded.com\/en\/retinol\/\">retinol<\/a> in the evening, or alternately. When starting a retinol, it's best to pause the vitamin C.<\/div><\/details><details class=\"bd-faq-item\"><summary>Pure or derived vitamin C?<\/summary><div class=\"bd-faq-answer\">Pure vitamin C (L-ascorbic acid) is the most effective, but unstable and potentially irritating. Derivatives are more stable, gentler and easier to combine, at the cost of less effectiveness: a good choice for sensitive skin. See details of <a href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/vitamin-c-derivatives\/\">vitamin C derivatives<\/a>.<\/div><\/details><\/div><\/div><\/section><section class=\"bd-section\"><div class=\"bd-wrap\"><span class=\"bd-section-label\">Further information<\/span><h2>Others <em>associated guides<\/em><\/h2><div class=\"bd-hub-grid\"><a class=\"bd-hub-card\" href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/best-serum\/\"><span class=\"bd-hub-card-tag\">Comparison<\/span><h3>The best vitamin C serums<\/h3><span class=\"bd-hub-card-arrow\">Read the guide \u2192<\/span><\/a><a class=\"bd-hub-card\" href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/serum-vitaminec-conseils\/\"><span class=\"bd-hub-card-tag\">Advice<\/span><h3>5 tips for applying vitamin C<\/h3><span class=\"bd-hub-card-arrow\">Read the guide \u2192<\/span><\/a><a class=\"bd-hub-card\" href=\"https:\/\/www.beautydecoded.com\/en\/vitamin-c\/vitamin-c-derivatives\/\"><span class=\"bd-hub-card-tag\">Guide<\/span><h3>Vitamin C derivatives<\/h3><span class=\"bd-hub-card-arrow\">Read the guide \u2192<\/span><\/a><a class=\"bd-hub-card\" href=\"https:\/\/www.beautydecoded.com\/en\/retinol\/\"><span class=\"bd-hub-card-tag\">Ingredient<\/span><h3>Retinol<\/h3><span class=\"bd-hub-card-arrow\">Read the guide \u2192<\/span><\/a><\/div><\/div><\/section><div class=\"bd-sig\"><strong>Dr Sylvain David<\/strong><span>Plastic and aesthetic surgeon - Founder of BeautyDecoded<\/span><\/div><div class=\"bd-disclaimer\"><p>Information for educational purposes only. It does not replace a medical consultation and must be adapted to each individual. The compatibility scores generated by the application do not prejudge the individual tolerance of each skin type. Pure vitamin C at low pH may sting reactive skin, and should be introduced gradually, in the morning under sun protection. In the case of rosacea, severe acne, the start-up of a retinol or very sensitive skin, a milder derivative is preferable, and appropriate advice should be sought. In case of skin pathology or doubt, dermatological advice is recommended. A tolerance test should be carried out before first use.<\/p><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Guide skincare - Ingredients Vitamin C for the face - benefits and how to choose it according to a doctor and BeautyDecoders analyses. Vitamin C is a major antioxidant in cosmetics: it reduces blemishes, brightens the complexion, stimulates collagen and protects against sun damage in addition to SPF. For...<\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"enable","_kad_post_title":"hide","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-331","page","type-page","status-publish","hentry"],"acf":[],"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"Beautydecoded","author_link":"https:\/\/www.beautydecoded.com\/en\/author\/sylvaindavid\/"},"comment_info":0,"_links":{"self":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/pages\/331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/comments?post=331"}],"version-history":[{"count":17,"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/pages\/331\/revisions"}],"predecessor-version":[{"id":74567,"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/pages\/331\/revisions\/74567"}],"wp:attachment":[{"href":"https:\/\/www.beautydecoded.com\/en\/wp-json\/wp\/v2\/media?parent=331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}