The brand that made cosmetics concentration transparency a reality. Ten flagship products analyzed, INCI deciphered, user opinions compiled, incompatibilities mapped - without marketing.
The Ordinary revolutionized mainstream cosmetology by imposing two rules long considered unthinkable for a mass-market brand.
Niacinamide 10 %, Retinol 1 %, Glycolic Acid 7 % - the active ingredient percentages are written on the bottle. A standard now imitated, but a pioneer at the time.
A niacinamide 10 % serum at €6.80 - this price leaves no margin for marketing. What we buy is the active ingredient, not the sales pitch.
«The Ordinary is the brand I recommend to patients who want to understand what they're putting on their skin and are on a budget. But it's an insider's brand - used well, a The Ordinary routine can rival 10× price routines. Used badly, a range of pure actives in high concentrations can do more harm than good.»
There are many incompatibilities between assets - respecting them is the key to success. essential. This is the purpose of the table below.
Sorted by descending BeautyDecoded rating. Synthetic verdicts guide your choice before going into product-by-product detail.
| Product | Note | Opinions | Verdict |
|---|---|---|---|
| Glycolic Acid 7% Toner | 4,89/5 | 45 | ~€9.80 - TOP gentle exfoliator |
| Retinal 0.2% Emulsion | 4,86/5 | 32 | ~€14.90 - TOP anti-âge 93.5 |
| Multi-Peptides + Copper 1% | 4,85/5 | 40 | ~€16.60 - TOP peptides |
| AHA 30% + BHA 2% Peeling | 4,57/5 | 30 | ~8.70 € - TOP resistant / FLOP sensitive |
| Soothing & Barrier Serum | 4,56/5 | 18 | ~15 € - Barrier + redness 71.4 |
| Niacinamide 10% + Zinc 1% | 4,43/5 | 82 | ~6.80 € - TOP Q/P ratio |
| Caffeine Solution 5% | 4,13/5 | 4 | ~7 € - Eye contour, variable |
| Multi-Peptide Eye Serum | 3,98/5 | 29 | ~15 € - Anti-aging eye contour |
| Hyaluronic Acid 2% + B5 | 3,88/5 | 44 | ~€7.90 - Correct, without differentiator |
| Azelaic Acid Suspension 10% | 3,30/5 | 10 | ~8 € - FLOP oily skin (fluffing) |
This is critical to using The Ordinary correctly. Incorrectly combining pure active ingredients can neutralize their effectiveness or cause severe irritation.
| Assets | Do not combine with | Why |
|---|---|---|
| Pure vitamin C (ascorbic acid) |
Copper peptides, retinol, AHA/BHA at the same time | Oxidizes copper peptides. pH incompatible with retinol and acids. |
| Retinol / Retinal | AHA, BHA, pure vitamin C the same evening | Cumulative irritation. Increased photosensitization. |
| Copper peptides (GHK-Cu) |
Pure vitamin C, exfoliating acids | Vitamin C oxidizes copper and degrades peptides. |
| AHA (glycolic, lactic) |
Retinol, pure vitamin C, BHA the same evening | Multiple exfoliants = severe irritation. |
| BHA (salicylic acid) |
AHA the same evening, retinol | Double exfoliation = over-irritation. |
| Niacinamide | Compatible with everything - no restrictions | The universally compatible cosmetic active ingredient. |
Universal products for the front line. High tolerance, compatible with all routines, no major restrictions.
Niacinamide at 10 % acts on four documented mechanisms regulates sebaceous production, reinforces the skin barrier, has an anti-inflammatory action and inhibits melanosome transfer. Zinc PCA (1 %) amplifies sebum-regulating action. 82 notices - the largest catalog volume analyzed.
Three forms of HA with different molecular weights + vitamin B5 (panthenol) + ceramides (recent version). Dry skin score: 90 - excellent. Sensitive skin score: +0.5 - suitable. Moderate rating (3.88/5) despite high volume of reviews - consistent with the polarization of returns: HA is a humectant, capturing available water. Applied to dry skin without occlusion, it can have the opposite effect.
Barrier formula : vitamin B12 (documented anti-pruritic action), ceramides, hyaluronic acid, beta-glucan. Dry skin score: 91 - optimal profile. Redness score: 71.4 - the highest in The Ordinary catalog analyzed. This serum is specifically designed to be combined with irritant active ingredients (retinoids, AHAs): it is applied beforehand to prepare and protect the skin barrier.
Active ingredients documented for collagen synthesis and wrinkle reduction. Variable tolerance - gradual introduction for retinoids.
Retinal (retinaldehyde) requires a single enzymatic conversion step to produce active retinoic acid (as opposed to two for retinol). more powerful at equivalent concentration. Anti-ageing score: 93.5 - the highest in The Ordinary catalog analyzed. Well-balanced formula: bisabolol (soothing), hyaluronic acid (humectant), squalane (occlusive). Airless pump format preserves the unstable molecule.
Multi-active formula: 9 peptide complexes (Matrixyl 3000, Argireline, SYN-AKE, GHK-Cu) + copper 1 peptides % + multi-weight AH. GHK-Cu copper peptides have been documented since the 1970s for their action on fibroblasts: stimulation of collagen and elastin synthesis, wound healing, antioxidant activity.
From the gentlest daily peel to the most intense one-off peel on the consumer market. The rule: never use two exfoliants on the same evening.
Glycolic acid 7 % light lotion - toner format, applicable with cotton pad or palms. Glycolic acid is the best-documented AHA for cell renewal, radiance and spot reduction. Exceptional quality/volume ratio: 240 ml at €9.80 - triple the volume of the standard size at a price 15 % higher.
30 % AHA + 2 % BHA at pH 3.5 - the highest concentration available without prescription in cosmetics. The AHA + BHA combination simultaneously covers surface exfoliation (AHA) and intrapilar exfoliation (liposoluble BHA). A divisive product: effective in a single application on confirmed resistant skin, risky on sensitive skin.
Azelaic acid 10 % is a serious active ingredient - anti-spot, anti-inflammatory, anti-comedonal. Redness score: 93.5 - the best of The Ordinary catalog. But the problem is formulaic: the suspension base uses an emulsion rich in silicones and fats, too heavy for oily skin - precisely the profile that most looks for this active ingredient. Recurrent linting reported.
Variable efficacy depending on etiology. Expectations for deep dark circles or anatomical bags are beyond the scope of topical active ingredients - to be calibrated.
Caffeine 5 % + EGCG (green tea epigallocatechin, antioxidant). Caffeine exerts an vasoconstrictor and draining action on periorbital microcirculation. Genuine efficacy on bags of vascular and edematous origin in the morning. Variable on anatomical or pigmented dark circles, which are beyond the reach of topical active ingredients. Refrigerated storage recommended.
Complex multi-peptides targeting fine lines, dark circles and puffiness. Anti-ageing score: 76.5 - relevant for an eye contour care product. Feedback reveals classic disappointed expectations in this category Anatomical puffiness and deep constitutional dark circles are beyond the reach of topical active ingredients. Satisfied profiles: use as a light corrective moisturizer with no marked problems.
Five turnkey routines to build with the catalog analyzed above. All respect incompatibility rules.
Niacinamide 10% + Zinc - SPF 50+
Niacinamide 10% + Zinc
If glycolic tolerated: Glycolic Acid 7% 2-3×/week
Hyaluronic Acid 2% + B5 - SPF 50+
Soothing & Barrier · Retinal 0.2% (2×/week, progressive intro) - cream
Niacinamide 10% - SPF 50+
Multi-Peptides + Copper · Retinal 0.2% (alternating)
Niacinamide 10% - SPF 50+ (essential)
Niacinamide 10% · Glycolic Acid 7% (2-3×/week)
Hyaluronic Acid 2% + B5 - SPF 50+
Soothing & Barrier Serum
No irritants in the sensitive phase
«This brand review is the synthesis of what I wish I could have explained to every patient who came into consultation with a bag full of The Ordinary - without knowing how to combine them.»
Scan it into the BeautyDecoded app to get a personalized score out of 100, based on your skin type and issues - no marketing, no compromises.
This information is for educational purposes only and does not replace a medical consultation. BeautyDecoded is an artificial intelligence analysis application 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 Ordinary brand.