Brand reviews - BeautyDecoded analysis
COSRX.
Cosrx, analysis by a doctor and opinions of beautydecoders.
South Korea's leading brand of active minimalism. Twelve products analyzed through snail mucin, peptides, BHA and propolis - with their BeautyDecoded scores and 125 actual user returns, including 46 on Snail 96 Essence and 24 on Snail 92 Cream.
12
Products analyzed
125
User reviews
4
Comic discoveries
90,1
Anti-ageing max (Vit C 23)
Further information
Analyze a COSRX product on your skin profile.
The BeautyDecoded application lets you scan any cosmetic product to visualize its suitability for your skin type and needs, based on INCI analysis.
Signature assets
Snail mucin - biochemistry and documented properties.
Snail mucin is COSRX's signature active ingredient. Its complex biochemical composition gives it the following properties multiple and complementary - healing, moisturizing, gentle exfoliation and firming support.
01
Allantoin & structural proteins
L'allantoin stimulates cell proliferation - documented healing properties on damaged skin and attenuation of scars. Visit structural proteins act as collagen and elastin precursors, supporting skin firmness.
02
Glycoproteins & enzymes
Visit glycoproteins ensure cell adhesion and create a moisturizing surface film. The proteolytic enzymes degrades denatured proteins - very gentle enzymatic exfoliation. Traces of’glycolic acid (AHA) for additional gentle desquamation.
Editorial reading
«Topical peptides are the most relevant anti-aging active to complement retinol for profiles wishing to maximize their routine without over-exfoliating. Studies on signal peptides and neurotransmitter inhibitors are solid over 12 weeks. 6 Peptide Skin Booster (anti-aging 83.3) and Vitamin C 23 Serum (anti-aging and blemishes 90.1) are the two most formulatively robust products in the COSRX catalog.»
Biochemical deciphering
Visit 5 active components mucin.
Decomposition of the main biologically active components of mucin and their cosmetological interest. The complexity of the matrix explains the multi-target effect documented.
| Component | Biological function | Cosmetological benefits |
|---|---|---|
| Allantoin | Stimulates cell proliferation, healing | Repair damaged skin, reduce scars |
| Glycolic acid (traces) | AHA - gentle desquamation | Light textured smoothing |
| Structural proteins | Collagen and elastin precursors | Supports skin firmness |
| Glycoproteins | Cell adhesion, moisturizing film | Surface hydration, barrier support |
| Proteolytic enzymes | Degradation of denatured proteins | Gentle enzymatic exfoliation |
Four BeautyDecoded discoveries
Absent products source article.
The analysis of BeautyDecoded data has identified four outstanding products that did not appear in the initial analysis. They are among the strongest in the catalog.
01
The Vitamin C 23 Serum
Anti-ageing and spots 90.1 - the highest scores in the COSRX catalog. Pure ascorbic acid at 23 % - one of the highest concentrations on the market. Stability confirmed in reviews.
02
Hydrium Centella Ampoule
Sensitive skin score +2.0 - best in catalog. Redness 76.5. Rosacea discovery. Redness score higher than Madagascar Centella Skin1004 Ampoule (76.5 vs. 68).
03
Balancium Comfort Ceramide Cream
Redness 81.6 and anti-aging 78.2 - exceptional for a ceramide cream. Multi-year loyalty noted in reviews. 25 € / 80 ml.
04
Propolis Synergy Toner
Blemishes 78.2 and redness 76.5. Sensitive skin score +1.0. Documented antibacterial and anti-inflammatory action of propolis - confirmed results on hormonal acne.
Overview
The 12 products analyzed, at a glance.
Ranked by descending BeautyDecoded rating. Snail 96 Essence has the highest number of reviews (46) - an exceptional statistical base. Snail 92 Cream (24 reviews) confirms a divide according to skin profile.
| Product | Note | Opinions | Verdict |
|---|---|---|---|
| The 6 Peptide Skin Booster Serum | 5,00/5 | 9 | TOP anti-âge 83.3 - 150 ml/€35 |
| BHA Blackhead Power Liquid | 5,00/5 | 5 | TOP BHA K-beauty - imperfections 76.5 |
| Hydrium Centella Soothing Ampoule | 5,00/5 | 2 | Sensitivity +2.0 - BD discovery |
| Low pH Gel Cleanser | 4,67/5 | 6 | TOP for oily skin - contraindicated for dry skin |
| Ultra Light Sunscreen SPF50+ | 4,63/5 | 8 | TOP SPF - sensitivity +1.0 |
| Propolis Synergy Toner | 4,63/5 | 8 | Imperfections 78.2 - BD discovery |
| Balancium Comfort Ceramide Cream | 4,50/5 | 2 | Redness 81.6 - BD discovery |
| Advanced Snail Peptide Eye Cream | 4,42/5 | 12 | Anti-ageing 78.2 - without active pockets |
| Ultimate Nourishing Rice Overnight Mask | 4,27/5 | 11 | Stains 76.5 - contradictory nourishing promise |
| The Vitamin C 23 Serum | 4,25/5 | 2 | Anti-âge + taches 90.1 - BD discovery |
| Advanced Snail 92 All in One Cream | 4,13/5 | 24 | Dry skin 50.4 - cleavage according to profile |
| Advanced Snail 96 Mucin Essence | 4,01/5 | 46 | Repair reference - larger volume |
Note on BeautyDecoded reviews. Snail 96 Essence (46 reviews), Snail 92 Cream (24 reviews), Snail Peptide Eye Cream (12 reviews) and Rice Mask (11 reviews) are the catalog's strongest statistical bases. Total volume of 125 reviews - one of the highest of all marquess combined.
Family 01
Anti-aging - Peptides & Vitamin C
The 6 Peptide Skin Booster (anti-ageing 83.3) and the Vitamin C 23 discovery (anti-ageing + spots 90.1) - the two most formulatively robust products in the catalog.
Serum 6 peptides
TOP - Anti-aging 83.3 (catalog record)
The 6 Peptide Skin Booster Serum
6 peptides covering several families (signalers, neurotransmitter inhibitors, transporters) + niacinamide + amino acid pool. Anti-aging score 83.3 - the highest in the COSRX catalog. Oily skin score 91 and normal to oily skin score 91 - optimal profile. Sensitive skin score -0.5 - well tolerated in practice (mature atopic skin confirmed in reviews).
Scores BeautyDecoded
Dry skin
77
Oily skin
91
Normal to dry skin
82,6
Normal to oily skin
91
Sensitive skin
-0,5
Anti-aging
83,3
⚠️ Sensitivity verdict
Slight caution recommended (score: -0.5). Well tolerated in practice on mature atopic skin, confirmed in the reviews.
«6 Peptide Skin Booster is the best COSRX serum - rated 5/5 out of 9 reviews, anti-aging score 83.3 (the highest in the catalog), 150 ml at €35 (exceptional Q/P ratio). Tolerance on mature atopic skin confirmed. Use as a base serum or as a complement to retinol in the evenings without exfoliation. The «liquid like water» texture is confirmed - superimpose a moisturizing cream on dry skin after application.»
User feedback
«The pump is a real plus and the large capacity is appreciated. I will repurchase.»
«Ultra-fluid, moisturizing texture that enhances the effectiveness of the following treatment.»
«Mature dry atopic skin: I tolerate it very well. I feel that the peptides have a real anti-aging effect.»
«Gives a natural glow. Can be mixed with foundation. Fits me perfectly.»
«Liquid like water. No immediate anti-aging effect - more preventive. Pleasant and finishes glowy.»
Verdict - TOP. Rated 5/5. Anti-ageing 83.3 (best in catalog). 150 ml/€35: exceptional Q/P ratio. Oily skin 91. Confirmed tolerance for atopic skin.
Vitamin C serum 23%
Découverte BD - Records 90.1
The Vitamin C 23 Serum
Vitamin C to 23 % (probably pure ascorbic acid). Anti-aging score 90,1 and stains 90.1 - the highest in the COSRX catalog. Universal profile 84-91. Sensitive skin score -2.5 - slight caution consistent with high concentration of pure AA. Discover BeautyDecoded.
Scores BeautyDecoded
Dry skin
91
Oily skin
84
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
-2,5
Anti-aging
90,1
⚠️ Sensitivity verdict
Not suitable for sensitive skin (score: -2.5). 23 % pure AA: very high concentration - gradual introduction mandatory.
23 % of pure AA. Concentration significantly higher than the 15 % of C15 Super Booster Paula's Choice and C-Firma Drunk Elephant. At this concentration, the risk of irritation is higher - gradual introduction mandatory. SPF 50+ morning essential. Excellent Q/P ratio (20 ml at €28) for this concentration.
«Vitamin C 23 Serum is the most significant discovery in the COSRX catalog for anti-aging and blemishes - scores of 90.1 (the highest in the catalog). Concentration of 23 % (one of the highest on the market): gradual introduction strictly mandatory. Stability confirmed in reviews («does not oxidize too quickly»). 2 insufficient reviews.»
User feedback
«Works very well and above all doesn't oxidize too quickly - it's a Holy Grail. I keep it in stock and repurchase it often.»
«Easy to apply, fresh. Skin looks more radiant after a few weeks.»
Verdict - Anti-ageing and spots 90.1 (catalog records). 23 % AA pure: very high concentration, gradual introduction mandatory. BeautyDecoded discovery. 2 insufficient reviews.
Family 02
range Snail - snail mucin
The signature active ingredient in three formulations: essence (96 %), cream (92 %), eye contour (mucin + peptides). Exceptional notice volumes - 46 + 24 + 12.
Restorative essence 96 % mucin
TOP - 46 reviews (record volume)
Advanced Snail 96 Mucin Power Essence
96 % snail mucin filtrate. Perfect universal profile - 91 on all types. Imperfections score 76.5 - the highest of all Snail products. Sensitive skin score -1.0 - slight caution, but rating 4.01/5 on 46 reviews - the largest volume in the COSRX catalog.
Scores BeautyDecoded
Dry skin
91
Oily skin
91
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
-1,0
Imperfections
76,5
⚠️ Sensitivity verdict
Slight caution recommended (score: -1.0). Probably reflects the presence of preservatives, not mucin itself.
«Advanced Snail 96 Mucin Essence is the COSRX repair reference - universal profile (91 everywhere), blemish score 76.5, 46 BeautyDecoded reviews (highest volume). Pimples reported in 1 review out of 46 - rare but documented phenomenon with mucin in certain acne profiles, to be monitored. Not to be confused with a top-ranking anti-aging serum (anti-aging score 49.3).»
User feedback
«My favorite serum - freshness, all-day hydration. Very good for sensitive skin.»
«I love its texture and plum effect after application.»
«Very useful before applying an active serum. Prepares dry, mature skin well. It's a relevant option for this profile.»
«Great texture but gives me pimples. I don't know what ingredient causes this.»
Verdict - TOP. Universal profile 91. Imperfections score 76.5. 46 reviews (largest catalog volume). Excellent Q/P ratio. 1/46: buttons reported (rare).
Cream 92 % mucin
Profile-based splitting - 24 reviews
Advanced Snail 92 All in One Cream
All-in-one cream 92 % mucin. Score for oily skin 84 and normal to oily skin 91 - optimal profile. Dry skin score 50.4 - not suitable for very dry skin, confirmed by 24 reviews. Redness score 68 - relevant for the anti-inflammatory action of mucin. Anti-ageing score 42.5 - moderate: this is a moisturizing emollient, not an anti-ageing corrective.
Scores BeautyDecoded
Dry skin
50,4
Oily skin
84
Normal to dry skin
57,4
Normal to oily skin
91
Sensitive skin
+0,75
Redness
68
✅ Sensitivity verdict
Adapted (score: +0.75).
«Snail 92 All in One Cream is suitable for normal to oily skin (84-91) looking for a repairing daily care product. Dry skin score 50.4: insufficient for dry skin, confirmed by 24 BeautyDecoded reviews. The «All in One» label is a marketing ploy - the formula specializes in hydration and barrier repair, not multi-action anti-aging. Redness score 68: an asset for slightly reactive skin.»
User feedback
«I repurchase - works on firmness and good hydration.»
«Cream intended for young skin - too light for my dry skin. I will not repurchase.»
Verdict - Oily skin score 84-91. Redness 68. Score 4.13/5 out of 24 reviews. Dry skin score 50.4: insufficient for this profile - confirmed by reviews.
Eye contour mucin + peptides
Anti-ageing 78.2 - without active pockets
Advanced Snail Peptide Eye Cream
Eye contour mucin + peptides. Anti-aging score 78.2 - high for eye contours. Redness score 76.5 - relevant for reddish under-eye circles. Sensitive skin score +0.75 - excellent. Universal profile 84-91. No caffeine - no action on vascular pockets.
Scores BeautyDecoded
Dry skin
84
Oily skin
84
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
+0,75
Anti-aging
78,2
✅ Sensitivity verdict
Unreservedly suitable (score: +0.75).
«Snail Peptide Eye Cream is the best COSRX eye contour cream - anti-aging score 78.2 and sensitive skin +0.75. Good rating (4.42/5) out of 12 reviews. Limitation: no caffeine - no action on vascular puffiness. For pigmented dark circles and fine lines: relevant option. Slow absorption time noted in one review: plan before the rest of the routine.»
User feedback
«I love this eye contour! Moisturizes really well.»
«I love this eye cream. Fluid texture for a smooth application.»
«Pleasant, no smell, good capacity. Visible results after a few weeks. Skin takes a little time to absorb.»
«Moisturizing but no decongesting actives for puffiness.»
Verdict - Anti-ageing score 78.2, sensitive skin +0.75. Score 4.42/5 out of 12 reviews. No decongesting active ingredients (puffiness). Mucin + peptides consistent.
Family 03
Soothing & barrier - Centella, Ceramide, Propolis
Three BeautyDecoded discoveries - Centella Ampoule (sensitivity +2.0), Balancium Ceramide Cream (redness 81.6) and Propolis Toner.
Centella asiatica ampoule
Découverte BD - Sensitivity +2.0 (record)
Hydrium Centella Aqua Soothing Ampoule
Bulb centella asiatica. Sensitive skin score +2.0 - exceptional, the best in the COSRX catalog. Redness score 76.5 - high. Universal profile 84-91. Superior score to Ampoule Madagascar Centella Skin1004 on redness (76.5 vs. 68). Discover BeautyDecoded.
Scores BeautyDecoded
Dry skin
84
Oily skin
84
Normal to dry skin
84
Normal to oily skin
91
Sensitive skin
+2,0
Redness
76,5
✅ Sensitivity verdict
Unreservedly suitable (score: +2.0). Record score in the COSRX catalog. Confirmed fragrance-free.
«Hydrium Centella Aqua Soothing Ampoule is the most notable discovery in the COSRX catalog - sensitive skin score +2.0 (best in catalog), redness 76.5. Score higher than Madagascar Centella Skin1004 Ampoule (76.5 vs. 68) on redness. 2 insufficient but unanimous reviews on rosacea. To be explored as a base treatment for rosacea profiles.»
User feedback
«Rosacea: ultra-moisturizing and acts significantly on redness.»
«Light and pleasant, absorbs quickly. Fragrance-free, non-irritating.»
Verdict - TOP. Sensitivity score +2.0 (catalog record). Redness 76.5. Rating 5/5. BeautyDecoded discovery.
Ceramide cream
Découverte BD - Redness 81.6
Balancium Comfort Ceramide Cream
Ceramide cream. Dry skin score 84 and quasi-universal profile 84-91. Sensitive skin score 0 - perfectly adapted. Redness score 81.6 - high for ceramide cream. Anti-aging score 78.2 - relevant. BeautyDecoded discovery - multi-year loyalty signaled.
Scores BeautyDecoded
Dry skin
84
Oily skin
91
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
0
Redness
81,6
✅ Sensitivity verdict
Unreservedly suitable (score: 0).
«Balancium Comfort Ceramide Cream is the most interesting discovery in the COSRX catalog - redness score 81.6 and anti-aging score 78.2 exceptional for a ceramide cream, sensitive skin 0, multi-year loyalty reported. Base of 2 reviews insufficient but unanimous. Not mentioned in source article. To be explored as a priority.»
User feedback
«The best moisturizer for my dry skin. I've been using it for years - every time we run out, it's impossible to find an alternative as moisturizing.»
«Moisturizes and maintains hydration over time. Improves absorption of other products. Excellent «glass skin» effect finish.»
Verdict - TOP. Redness 81.6 and anti-aging 78.2 (exceptional). Sensitive skin 0. Multi-year loyalty reported. BeautyDecoded discovery.
Propolis toner
Découverte BD - Imperfections 78.2
Propolis Synergy Toner
Toner propolis (antibacterial and anti-inflammatory hive extract). Sensitive skin score +1.0 - excellent. Imperfections score 78,2 and redness 76,5 - relevant. Universal profile 84-91. BeautyDecoded discovery.
Scores BeautyDecoded
Dry skin
84
Oily skin
84
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
+1,0
Imperfections
78,2
✅ Sensitivity verdict
Unreservedly suitable (score: +1.0).
«Propolis Synergy Toner is one of the discoveries in the COSRX catalog - rating 4.63/5, sensitive skin score +1.0, blemishes 78.2 and redness 76.5. Antibacterial and anti-inflammatory action of propolis consistent with the results on hormonal acne and scarring reported in reviews. Generous 150 ml size. Ideal use: after cleansing, before serums».»
User feedback
«Propolis with anti-inflammatory properties - limits my hormonal acne and helps healing. Moisturized and plumped skin.»
«Excellent product. Does not stick, odorless. Deeply moisturized skin with plumping effect, no greasy effect.»
«Humectant lotion perfectly suited to dry skin. After cleansing, the skin no longer tautens and feels almost nourished.»
«Light, non-sticky, gives glow. Strongly recommends using the full propolis range.»
Verdict - TOP. Rated 4.63/5. Sensitive skin score +1.0. Blemishes 78.2, redness 76.5. Antibacterial/anti-inflammatory propolis. BeautyDecoded discovery.
Family 04
Oily skin routine - BHA, cleanser, SPF, mask
The BHA Blackhead Power Liquid (TOP), the Low pH Cleanser (oily skin only), the Ultra Light SPF50+, and the Rice Mask with their contradictory positioning.
BHA exfoliating lotion
TOP BHA K-beauty
BHA Blackhead Power Liquid
BHA (salicylic acid) with calibrated pH (~3.5-4) in a minimalist formula. Oily skin score 84 and normal to oily skin score 91 - optimal profile. Blemish score 76.5 - high. Anti-ageing score 72.25. Sensitive skin score -1.0 - slight caution consistent with BHA.
Scores BeautyDecoded
Dry skin
72,8
Oily skin
84
Normal to dry skin
72,8
Normal to oily skin
91
Sensitive skin
-1,0
Imperfections
76,5
⚠️ Sensitivity verdict
Slight caution recommended (score: -1.0). Consistent with BHA.
BHA precautions. Start 2-3 evenings/week. SPF 50+ morning mandatory. Do not combine with retinol on the same evening. Assess tolerance over 4 weeks before intensification.
«BHA Blackhead Power Liquid is the K-beauty reference BHA at COSRX - rating 5/5 out of 5 reviews, imperfections score 76.5, optimal oily skin profile (84-91). A user preferring this BHA to Paula's Choice is a signal of superior tolerance. Excellent Q/P ratio 100 ml/25 €. Positioned as an entry-level BHA - less formulatively documented than BHA 2% Lotion Paula's Choice (more precise pH), but more affordable.»
User feedback
«Very good texture, not drying or irritating, effective on pimples.»
«I used to use Paula's Choice before. This lotion doesn't dry out - very good in comparison.»
«Improves the condition of my skin from day to day. Very pleasant even for dry skin.»
«Really effective. Be careful not to use it too frequently or in large quantities.»
Verdict - TOP. Rating 5/5. Blemishes 76.5. Oily skin 84-91. Transition from Paula's Choice reported. 100 ml/25 €: excellent Q/P ratio.
Cleansing gel pH 5-6
TOP for oily skin - contraindicated for dry skin
Low pH Good Morning Gel Cleanser
Gel cleaner pH 5-6 + salicylic acid + tea tree. Oily skin score 91 - optimal. Dry skin score 17.5 - formally contraindicated for this profile. Blemish score 68 - relevant. Score 4.67/5 out of 6 reviews, all positive (oily or combination skin profiles).
Scores BeautyDecoded
Dry skin
17,5
Oily skin
91
Normal to dry skin
38,5
Normal to oily skin
84
Sensitive skin
-1,1
Imperfections
68
⚠️ Sensitivity verdict
Slight caution recommended (score: -1.1).
Salicylic acid + tea tree. Do not use on dry, sensitive or atopic skin. Risk of dehydration and over-exfoliation on these profiles. Dry skin score 17.5 confirms formal contraindication.
«Low pH Good Morning Gel Cleanser is K-beauty's benchmark cleanser for oily skin (score 91) - barrier-preserving pH, antibacterial BHA + tea tree, exceptional Q/P ratio (€12/150 ml). Dry skin score 17.5: strictly contraindicated for this profile. For combination skin: use in the evening only (without daily BHA to avoid over-exfoliation). On oily, acne-prone skin: daily morning and evening use, clinically validated.»
User feedback
«Very gentle, cleans effectively with a sensation of freshness and purified skin.»
«Excellent value for money. Good cleanser for oily skin. Does not lather much - this is normal.»
«Inexpensive, effective on small pimples. Not a great smell but you get used to it. Does not dry out.»
«Effective, skin doesn't tug. Good value for money.»
Verdict - TOP (oily skin only). Oily skin score 91. Blemishes 68. 12 €/150 ml: exceptional Q/P ratio. Dry skin score 17.5: contraindicated.
SPF 50+ PA++++ modern filters
TOP SPF - Sensitivity +1.0
Ultra Light Invisible Sunscreen SPF50+
SPF50+ PA++++. Sensitive skin score +1.0 - excellent for SPF. Universal score 84-91 on all types. Modern chemical filters (Tinosorb, Uvinul) - good UVA/UVB protection. Referenced in BeautyDecoded 2024.
Scores BeautyDecoded
Dry skin
85,4
Oily skin
84
Normal to dry skin
91
Normal to oily skin
91
Sensitive skin
+1,0
Anti-aging
48,5
✅ Sensitivity verdict
Unreservedly suitable (score: +1.0).
«Ultra Light Invisible Sunscreen is the best SPF in the COSRX catalog - sensitive skin score +1.0, universal profile (84-91), rating 4.63/5. Light texture with no white residue, unanimously confirmed. Compatibility on sensitive skin with redness/rosacea confirmed. Particular case of melasma: prefer a tinted version with iron oxides to block visible light. Slight initial sticky sensation reported - wait before applying make-up».»
User feedback
«Purchased thanks to the BeautyDecoded video. Light, melting texture, fragrance-free and transparent. Sensitive skin with redness: TOP. This is a relevant option to 100%.»
«Product in the top 2024 BeautyDecoded. Ultra fluid texture - you don't feel like you're applying sunscreen. Validated.»
«Pleasant and moisturizing, does not grease, does not whiten.»
«Fluid, a little sticky at first but the effect dissipates quickly. Very good for sensitive skin and rosacea.»
Verdict - TOP. Sensitive skin score +1.0. Universal profile 84-91. Rating 4.63/5. Invisible texture confirmed. Referenced in BeautyDecoded 2024.
Rice night mask
Contradictory promise
Ultimate Nourishing Rice Overnight Spa Mask
Rice night mask. Normal to dry skin score 91 - optimal for this skin type. Dry skin score 56 - paradoxically moderate for a «nourishing» mask». Sensitive skin score 0 - perfectly suited. Spots score 76,5 - (phytosterols and ferulic acid from rice).
Scores BeautyDecoded
Dry skin
56
Oily skin
56
Normal to dry skin
91
Normal to oily skin
77
Sensitive skin
0
Stains
76,5
✅ Sensitivity verdict
Unreservedly suitable (score: 0).
«Rice Overnight Mask has a real anti-dark spot advantage (score 76.5), but its «nourishing» positioning is at odds with the formula (dry skin 56). BeautyDecoded reviews confirm this reading: excellent for normal skin, disappointing for dry skin. To be mentally repositioned as a lightly moisturizing anti-shine mask rather than a nourishing mask. Two users turned the mask into a day or night cream - a signal that the texture is appreciated, but not for the promised nourishing mask.»
User feedback
«Excellent mask or cream. Nourishes skin well. Gentle formula.»
«Hydrates the skin superbly. Perfect for dry and dehydrated skin.»
«Diverted into a morning moisturizer - light, pleasant texture.»
«Texture too thin and not nourishing enough for my dry skin. Disappointing.»
Verdict - Blemish score 76.5 (a real asset). Dry skin score 56: contradiction with nourishing promise. Score 4.27/5: divided opinions according to skin type. Sensitive skin 0.
Putting it into practice
COSRX routines by skin profile.
Four protocols based on the COSRX catalog. Never combine BHA + retinol on the same evening. SPF mandatory in the morning.
Oily - acneic
Skin grasse acne-prone
Morning
Low pH Cleanser · Propolis Synergy Toner · Ultra Light Sunscreen SPF50+
Evening
Low pH Cleanser · BHA Blackhead Power Liquid (2-3×/sem) - Snail 96 Mucin Essence · Snail 92 All in One Cream
Retinol-free anti-aging
Anti-aging retinol-free
Morning
Snail 96 Mucin Essence · 6 Peptide Skin Booster · Ultra Light Sunscreen
Evening
Snail 96 Mucin Essence · 6 Peptide Skin Booster · Balancium Ceramide Cream
Sensitive - rosacea
Skin sensitive rosacea
Morning
Hydrium Centella Ampoule · Balancium Ceramide Cream · Ultra Light Sunscreen
Evening
Snail 96 Mucin Essence · Hydrium Centella Ampoule · Balancium Ceramide Cream
Anti-dark spot - radiance
Anti-stain and shine
Morning
The Vitamin C 23 Serum (gradual introduction) - Ultra Light Sunscreen (SPF required)
Evening
BHA Blackhead Power Liquid (2-3×/sem) - 6 Peptide Skin Booster · Balancium Ceramide Cream
Frequently asked questions
Everything you need really know.
Is snail mucin suitable for sensitive, reactive skin?
Yes - that's precisely the profile for which it's best suited. Mucin is non-irritating, fragrance-free in COSRX formulas, Its ingredients (allantoin, glycoproteins) are soothing and repairing. The -1.0 sensitive skin score for Essence 96 % contradicts the 46 reviews (generally positive for sensitive skin) - the algorithmic score probably reflects the presence of preservatives, not the mucin itself.
Can BHA Blackhead Power Liquid be used every day?
Not recommended at the start of a routine. Start with 2 to 3 evenings a week, For very oily skin, use daily in the evening - but watch for signs of over-exfoliation. For very oily, resistant skin, daily use in the evening is possible - but watch out for signs of over-exfoliation. Never combine with retinol on the same evening.
Is 6 Peptide Serum compatible with pregnancy?
Topical peptides and niacinamide are generally accepted during pregnancy. The formula does not contain retinoids or active ingredients that are formally contraindicated. As always, consult your doctor or midwife before making any routine changes during pregnancy.
How do you position COSRX products in your routine?
Recommended order: cleaner (Low pH if oily skin) → Snail 96 petrol or Propolis Toner → active serum (6 Peptide Booster or Vitamin C 23) → BHA (evening, 2-3×/week, before serums) → cream (Balancium Ceramide or Snail 92) → SPF Ultra Light (morning only). Do not use BHA + retinol on the same evening.
Which COSRX product is best for rosacea?
L'Hydrium Centella Aqua Soothing Ampoule is the most relevant discovery - sensitive skin score +2.0 (catalog record), redness 76.5, unanimous feedback on rosacea. Higher redness score than Ampoule Madagascar Centella Skin1004 (76.5 vs. 68). In addition: the Balancium Comfort Ceramide Cream (redness 81.6) for the skin barrier.
What is the BeautyDecoded application?
BeautyDecoded is an application that helps you choose cosmetics adapted to your skin type thanks to the’INCI analysis. The application analyzes formulations and generates compatibility scores for 80 skin types. 12 COSRX products are referenced in the database, with 125 user reviews - one of the highest volumes of all marques products combined. It does not constitute a medical consultation.
Further information
Analyze a COSRX product on your skin profile.
The BeautyDecoded application lets you scan any cosmetic product to visualize its suitability for your skin type and needs, based on INCI analysis.
Information for educational purposes only, not a substitute for medical consultation. BeautyDecoded is a cosmetic analysis application using artificial intelligence and is not a medical diagnostic tool. The results presented depend on the user's diligence and skin type. This article does not constitute a commercial partnership with the COSRX brand.
