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Soap, cosmetic or drug? A check

Updated October 2026

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Run it in order 1. The composition test 2. The representation test 3. The drug test Reading the result References

Four questions, answered in order, that put a specific product in one of three categories.

Run it in order

The order matters: a product can fail at step one and never reach step two, and a yes at step three overrides everything above it.

Answer for the product as you actually sell it, including the website, the market sign and what you say out loud.

1. The composition test

Is the bulk of the non-volatile matter an alkali salt of fatty acids?

And are the detergent properties due to those alkali-fatty acid compounds?

Both must be yes. A true cold process or hot process soap passes. A syndet bar does not, because its cleaning comes from synthetic detergents. A melt and pour base with a large synthetic detergent fraction may not.

No at either point: it is a cosmetic, and the rest of the soap exemption is unavailable. Go to the drug test.

2. The representation test

Is the product labeled, sold and represented only as soap?

Which means: does anything anywhere claim it moisturizes, nourishes, softens, is gentle on skin, beautifies, or alters appearance?

Check the wrapper, the box, the website, the listing title, the product name, the market sign and the social posts.

Any cosmetic claim and the answer is no: it is a cosmetic.

All clear, and both parts of step one passed: it is exempt soap. Go to the drug test anyway.

3. The drug test

Is it offered to treat or prevent disease, or to affect the structure or function of the body?

Antibacterial. Antifungal. Treats acne. Relieves eczema. Kills germs. Heals.

Include claims carried by an established name or a well-known intended use, not only explicit ones.

Yes: it is a drug, and it may be a drug and a cosmetic at the same time.

Reading the result

Exempt soap: identity, net quantity, business name and place. No ingredient declaration required. CPSC jurisdiction.

Cosmetic: all of that plus an INCI ingredient declaration in descending order of predominance, plus MoCRA registration and listing obligations subject to the small business exemptions.

Drug: a Drug Facts panel, an active ingredient statement, the monograph or application route, and drug registration and listing.

And note the commonest real-world result: a bar that passes step one and fails step two, which is a cosmetic being sold as soap.

References

21 CFR 701.20. FDA interprets "soap" to apply only to articles where the bulk of the non-volatile matter consists of an alkali salt of fatty acids, the detergent properties are due to those alkali-fatty acid compounds, and the product is labeled, sold and represented only as soap. ecfr.gov

US Food and Drug Administration. Is It a Cosmetic, a Drug, or Both? (Or Is It Soap?). How intended use, established by claims, decides which of the three a product is. fda.gov

US Food and Drug Administration. Cosmetics Labeling Guide, and the cosmetic labeling requirements that apply the moment a product is not exempt soap. fda.gov

US Food and Drug Administration. Cosmetic versus drug: a product making a therapeutic claim, or offered to treat or prevent a condition, is a drug. fda.gov

INCI nomenclature for cosmetic ingredient declaration in descending order of predominance, which applies to a soap that is a cosmetic and not to exempt soap. fda.gov

US Food and Drug Administration. Registration & Listing of Cosmetic Product Facilities and Products under MoCRA, including the small-business exemptions and what they do not cover. fda.gov

US Consumer Product Safety Commission. Soap Business Guidance. Products meeting the FDA soap exemption fall to CPSC rather than FDA, with labeling under the Fair Packaging and Labeling Act and the Federal Hazardous Substances Act where relevant. cpsc.gov

Fair Packaging and Labeling Act, and the consumer commodity requirements: a statement of identity, a net quantity of contents and the name and place of business of the manufacturer, packer or distributor. ftc.gov

Written from the federal regulation and FDA and CPSC guidance named on each page, not from a laboratory or a legal practice. Whether a particular product and a particular label make exempt soap, a cosmetic or a drug is a determination about your product, and this is not that determination.