Transparency
How the Industry Works
The research behind skincare is one thing. The industry that sells it is another — the systems, claims, and incentives decoded.
No regulatory body in the US or EU restricts what brands can call "clinically proven" on a cosmetic product. A 12-person perception survey, an unpublished internal test, or a brand-funded questionnaire asking whether participants felt their skin looked better — all can legally appear on packaging as "clinically proven."
Evidence quality — what "clinically proven" might mean
Consumer perception survey
e.g. "felt smoother"
Unpublished internal test
brand-run, not peer-reviewed
Industry-funded study
may be peer-reviewed — check conflicts
Independent RCT, published
50+ participants, control group, blinded
All four can legally appear on packaging as "clinically proven"
Restricted / prohibited cosmetic ingredients
Precautionary principle
Risk-based approach
A larger EU list ≠ safer products — many EU bans are precautionary, not evidence-based
The gap reflects regulatory philosophy, not a difference in ingredient danger. The EU applies a precautionary principle — restrict first, verify later. The US requires demonstrated harm at cosmetic doses before acting. A bigger EU list doesn't mean US products are unsafe.
What each "dermatologist" claim actually requires
Dermatologist tested
Minimum 1 dermatologist
Dermatologist recommended
Minimum 1 paid endorsement
Dermatologist approved
Nothing — self-applied
FDA-approved drug claim
Rigorous clinical trials
Paid dermatologist partnerships are common and legal. Product packaging carries no disclosure requirement for these relationships — only social media content requires FTC disclosure.
How influencer skincare economics work
Paid partnerships and affiliate codes are required to be disclosed under FTC guidelines. The deeper issue isn't disclosure — it's incentive structure. A creator whose income depends on brand partnerships is structurally motivated to produce positive content regardless of product quality.
How a 1970s rabbit study ends up on your moisturiser
1970s rabbit ear assay
Concentrated ingredient applied to rabbit ear canal
Comedogenicity score
Ingredient assigned a 0–5 rating
Published on websites
CosDNA, Paula's Choice, etc. list the score
Brands avoid it
"This product contains no high-comedogenicity ingredients"
"Non-comedogenic" label
Often with no human testing conducted
Rabbit ear canal ≠ human facial skin. Human comedogenicity testing exists but is rarely conducted
The term is unregulated — brands self-apply it with their own testing, or no testing at all. The most-cited underlying data comes from 1970s rabbit ear assays that dermatologists widely criticise as poorly predictive of human comedone formation. Many ingredients flagged as high-comedogenicity by these assays cause no acne in human clinical use.
Origin ≠ safety
❌ Natural & harmful
- Poison ivy
- Arsenic
- Lead
- Botulinum toxin
✓ Synthetic & evidence-backed
- Niacinamide
- Retinol (OTC)
- Glycolic acid
- Phenoxyethanol
Safety depends on molecular structure, concentration, and exposure — not origin
"Natural," "clean," and "green" have no regulatory definition in US cosmetics. Whether a substance is safe depends on its molecular structure, concentration, and exposure route — not whether it came from a plant or a lab. Some of the most evidence-backed actives in skincare (retinol, niacinamide, glycolic acid) are synthesised for the purity and concentration that clinical trials demonstrated efficacy at.
Niacinamide — same active, very different prices
The Ordinary Niacinamide
Niacinamide 10% · Evidence-based dose
CeraVe PM Moisturiser
Niacinamide ~4% · Solid formulation
Tatcha The Dewy Skin Cream
Niacinamide unlisted · Concentration not disclosed
Check active concentration and ingredient list position — not the price tag
Active ingredients — retinoids, niacinamide, AHAs, vitamin C, ceramides — are inexpensive to produce. Higher prices typically reflect brand positioning, packaging, fragrance, and marketing spend. Where price can legitimately correlate with quality: formulation stability for unstable actives like vitamin C and retinoids, where delivery system matters.
Every claim on this page is sourced from publicly available regulatory documentation, peer-reviewed research, or primary FTC/EU guidance. If you spot an error, flag it.