GS Glass Skin USA Clean skincare, decoded Today's decode

Clean skincare education

“Clean” is not a regulated word. So we check the bottle.

No agency defines clean, natural, or organic for cosmetics in the United States. A brand can print all three on a carton and be telling you nothing. Every day we take one real product, put its marketing claim beside its actual ingredient list, and show you where the two disagree.

Read today's decode How we judge

Published daily. Sources cited on every claim. We do not accept payment to change a verdict.

The Greenwashing Decoder

Today's decode

One product. Its claims on the left, what the INCI list actually supports on the right.

Brightening Botanical Essence

Category: essence · Claim set reviewed from current packaging

Partly supported
“97% naturally derived”

Naturally derived has no legal definition. Water is naturally derived and is the first ingredient by volume in most essences. The figure is unfalsifiable as printed.

Unverifiable
“Fragrance free”

Supported. No parfum, fragrance, or masking agent appears in the INCI list. This is a claim that can actually be checked, and it holds.

Supported
“Dermatologist approved”

No study, panel size, or named reviewer is disclosed. Approved is not a regulatory status. Without a citation this tells you nothing about tolerance or efficacy.

Unsupported

Sources: product INCI list as printed on current packaging; FDA guidance on cosmetic labelling, which does not define “natural” or “clean”. This is consumer education, not medical advice.

Yesterday

Barrier Repair Cream

Three claims checked. Two supported, one unverifiable.

Two days ago

Vitamin C Serum, 20%

Concentration claim supported. Stability claim not substantiated on pack.

Three days ago

Mineral Sunscreen SPF 50

Filter claim supported. “Reef safe” has no legal definition.

Ingredient of the day

Niacinamide

A form of vitamin B3 used across barrier, tone, and oil-control formulas. One of the better-evidenced actives in cosmetic use, and one of the most over-claimed.

It appears in clean-positioned and conventional products alike, which makes it a useful test of whether a brand is selling chemistry or selling a word. Niacinamide is synthesised. That does not make it unclean. It makes “clean” a poor proxy for whether a formula suits your skin.

Check it against your routine
  • Also listed as Nicotinamide, vitamin B3
  • Typical use 2% to 10% in leave-on formulas
  • Commonly paired with Ceramides, hyaluronic acid, zinc
  • Watch for Stacked with high-strength acids in one routine
  • Evidence quality Multiple peer-reviewed studies in cosmetic dermatology
  • What it will not do Treat, cure, or prevent any medical condition

Our standard

How a claim earns a verdict.

We are not testing whether a product works on you. We are testing whether what the brand printed can be checked at all.

Supported

Checkable, and it checks out

The claim maps to something verifiable on the ingredient list or a cited study. Fragrance free is the clearest example.

Unverifiable

Not false, just meaningless

The words have no regulatory definition, so the claim cannot be proven or disproven. Naturally derived, clean, and non-toxic usually land here.

Unsupported

Implies proof that is not shown

The claim borrows authority without disclosing the study, panel, or standard behind it. Dermatologist approved with no citation is the common case.

The apps

Two tools that do the checking for you.

The decoder covers one product a day. These check the ones already on your shelf.

DewyIQ

Check an ingredient before it reaches your face

Look up any ingredient, see what conflicts with what, and ask an Advisor tuned to your skin profile. Free tier includes three checks a day.

See DewyIQ
SkinClash

Find out what in your routine is fighting itself

Put two products side by side and see whether their actives should be used together, separated by time of day, or not combined at all.

See SkinClash

What this site is not

We do not give medical advice.

Not a diagnosis

Nothing here diagnoses, treats, prevents, or cures any condition. Persistent skin concerns belong with a dermatologist.

Not a safety ranking

Synthetic does not mean harmful and natural does not mean gentle. We check claims, not moral categories.

Not for sale

No brand can pay to change a verdict. Where a link earns commission we say so on the link itself, not in a footnote.