Cosmetic vs Drug Claims: The Skincare Copy That Turns Your Product Into a Drug

Skincare copy fails compliance in a way most sellers do not expect. The formula is almost never the problem. A moisturizer with the same twelve ingredients can be a cosmetic on one listing and an unapproved drug on the next, and the only difference is the verbs. FDA decides what a product is by its intended use, intended use is shown by what you claim, and Amazon enforces the same line: its restricted products page for cosmetics lists "listings making disease claims" among the things that cannot be sold at all.

This guide covers where the line sits, the words that cross it, the product types that cannot stay cosmetic once the claim is made, and the phrasing that keeps a benefit on the right side.

The line is drawn by your copy, not your formula

Under the FD&C Act, a cosmetic is an article intended to cleanse, beautify, promote attractiveness or alter the appearance (section 201(i)). A drug is an article intended to diagnose, cure, mitigate, treat or prevent disease, or to affect the structure or any function of the body (section 201(g)(1)(B) and (C), both at 21 USC 321). Neither definition mentions ingredients. The word "intended" does the work, and FDA reads intent from claims, from how consumers perceive the product, and from ingredients known for a drug effect. FDA's own explainer, Is It a Cosmetic, a Drug, or Both?, is the plain-language version.

Two consequences follow. First, a product can be both a cosmetic and a drug, and when it is, it is regulated as a drug: drug labeling, drug listing, and no MoCRA cosmetic product listing, because drug-cosmetics fall under the drug rules instead (21 USC 364j). Second, a cosmetic that makes a drug claim without meeting drug requirements is an unapproved new drug, whatever is in the jar. The copy alone changes the regulatory category.

Verbs that assert a physiological effect

FDA's cosmetic warning letters keep citing the same handful of words. The pattern is a verb that claims something happened inside the skin rather than on its surface:

• Treats, heals, cures. The textbook drug verbs. "Heals dry, cracked skin" is a drug claim; "softens dry skin" is cosmetic. Gel polish that "cures under a UV lamp" uses a different sense of the word and is fine.
• Anti-inflammatory, reduces inflammation, calms inflammation. Inflammation is a physiological process. A claim to change it is a drug claim.
• Stimulates, boosts or promotes collagen. Collagen production is a function of the body, so any verb attached to it is a structure/function claim.
• Regenerates. Cell or skin regeneration is a structural claim.
• Increases cell turnover, speeds skin renewal. Same category.
• Repairs skin, repairs DNA, repairs the skin barrier. Repair claims a structural change.
• Improves circulation, boosts blood flow. Circulation is a bodily function.

Then the wrinkle family. "Reduces wrinkles", "erases fine lines", "removes stretch marks" and "fades scars" all claim a physical change to the skin. The cosmetic form is "reduces the appearance of wrinkles", and that phrase is the whole argument. Drop "the appearance of" and the claim moves categories.

Named conditions and drug categories

A second group of terms is riskier still, because no rewrite rescues them. They name a condition or a recognised OTC drug category, and a product that genuinely does what they say belongs under a drug monograph, not in Beauty.

Term in your copy	Why it is a drug claim
SPF, sun protection, broad spectrum, UVA/UVB	Sunscreen is an OTC drug (21 CFR 201.327)
Antibacterial, antimicrobial, kills germs, sanitizes	Antimicrobial claims make a soap or wash an OTC drug
Antiperspirant, stops sweat	Antiperspirant is an OTC drug category; deodorant alone is cosmetic
Dandruff	Anti-dandruff is an OTC drug category (21 CFR 358 subpart H)
Acne, clears breakouts, fights blackheads	OTC acne monograph (21 CFR 333 subpart D); "for acne-prone skin" without a treatment claim stays cosmetic
Eczema, psoriasis, rosacea, dermatitis	Names a skin disease
Hair regrowth, regrows hair, stops hair loss	Hair regrowth is a drug claim (minoxidil monograph)
Skin lightening, whitening, bleaching, melasma	Drug claim; "evens the appearance of skin tone" is cosmetic
Pain relief, anti-itch, numbing, lidocaine	Drug claim
Fluoride, prevents cavities, gingivitis	Anticaries and gum-disease claims make oral care an OTC drug (21 CFR 355)
Fat burning, slimming, cellulite removal	Structure/function claim; "smooths the appearance of cellulite" is cosmetic

Hydroquinone deserves its own line. Amazon's cosmetics restricted-products page prohibits skin lighteners above 2% hydroquinone, but FDA goes further: after the 2020 CARES Act removed hydroquinone from the OTC monograph, FDA treats any OTC hydroquinone product as an unapproved new drug. A listing naming hydroquinone at any strength should be reviewed, not just one above 2%.

If your product is actually a sunscreen, an antiperspirant or an acne treatment, the answer is not softer copy. It is relisting under the applicable OTC monograph with drug labeling. Softening a real sunscreen into "sun-kissed protection" misleads the buyer and does not change what the product is.

Net impression: implied claims count too

Automated scans catch words. Human reviewers, at FDA and in an Amazon appeal, read the listing as a consumer would and judge the whole impression. Claims that never use a banned verb can still establish a drug intended use:

• "Clinical strength" or "medical grade" positioning.
• "Doctor formulated for rosacea", which names a disease through the formulator.
• Ingredient call-outs with a known drug effect: "with 1% hydrocortisone", "contains minoxidil", "retinoic acid".
• Before-and-after images that show a condition clearing, or side-by-side comparisons with a drug product.

Amazon's Business Solutions Agreement requires every claim, including those made through images, to be truthful and substantiated, so an infographic is held to the same standard as a bullet. The same net-impression logic governs supplements, and our guide to restricted keywords for supplement listings shows how a word swap without a claim change fails on review.

What stays cosmetic

The safe vocabulary is wider than nervous sellers assume. Conventional cosmetic benefits need no softening: moisturises, hydrates, softens, smooths, nourishes, conditions, cleanses, exfoliates, mattifies, covers, tints, scents. Appearance framing handles most of the rest:

• "Reduces the appearance of fine lines" rather than "reduces fine lines".
• "Skin looks brighter" rather than "lightens skin".
• "Helps skin feel calmer" rather than "calms inflammation".
• "For acne-prone skin" rather than "clears acne".
• "Smooths the appearance of cellulite" rather than "reduces cellulite".
• "Leaves skin looking plumper" rather than "stimulates collagen".

The test is always the same. Does the sentence describe how the skin looks or feels, or does it describe something the product did to the body?

True soap: a special case

Soap sits outside the cosmetic definition entirely when it meets 21 CFR 701.20: the bulk of the non-volatile matter is alkali salts of fatty acids, those salts are the only detergent, and the product is labeled, sold and represented only as soap. "Handmade cold-process bar soap, cleans hands and body" qualifies. Add "moisturising" or "softens and nourishes skin" and it becomes a cosmetic with full cosmetic labeling and MoCRA duties. Add "antibacterial" or "kills 99.9% of germs" and it becomes a drug. One bar, three regimes, decided by the bullets.

A pre-publish check

Before a beauty listing goes live, read every field, including backend search terms and the text inside A+ images:

1. Circle every verb attached to the skin or hair. Treats, heals, repairs, regenerates, stimulates, boosts and increases are drug verbs when the object is a body function.
2. Find every mention of wrinkles, lines, scars, stretch marks and cellulite. Confirm "the appearance of" is present.
3. Search for the condition and category words in the table above. Any hit means the product either moves to OTC or the claim goes.
4. Look at the images and the product name with the same eye. A product called RosaCalm with a flare-up photo is making a disease claim regardless of the bullets.
5. Check the ingredient story: no drug actives called out as selling points.
6. While you are in the copy, check the free-of and natural claims against the ingredient list, since the same review reads those too.

Doing this across a catalogue, including the variations nobody has opened in a year, is what Verid8 does at scale: it reads listing text and images against the cosmetic and drug lexicon and the rest of the beauty rule set, flags each claim with the citation, and proposes the appearance phrasing that keeps the benefit. The Beauty & Personal Care category page lists what the check covers.

Sell what the product does to how skin looks and feels. The moment the copy claims what it does to the skin itself, you have written a drug label.