Shampoo bar label requirements (US, 2026)
The most expensive word a soapmaker can put on a bar is “shampoo.” The moment a bar is sold for washing hair, the “true soap” shortcut disappears and the full FDA cosmetic label applies — even if the recipe is plain saponified oils. Here is what a handmade shampoo bar sold in the US actually needs.
1. A shampoo bar is a cosmetic — the soap exemption does not apply
The narrow “true soap” carve-out (21 CFR 701.20) covers products that are alkali salts of fatty acids, whose cleaning action comes from those salts, and that are labeled, sold and represented only as soap. A shampoo bar fails the last test by definition: cleansing hair is a cosmetic intended use under the FD&C Act. That means:
- Syndet bars (SCI, SLSa, Cocamidopropyl Betaine…) — cosmetics, no question;
- Cold/hot-process “soap” shampoo bars — also cosmetics, because they're marketed for hair. Same recipe sold as a plain body bar could be exempt; the word “shampoo” flips it.
So the complete cosmetic label is required: identity statement, net quantity, full ingredient declaration, your business line, and the MoCRA contact line — each covered below.
2. The claims trap: dandruff and hair growth are drug territory
Intended use is decided by what your label and listing say:
- “Cleanses,” “adds shine,” “softens,” “reduces frizz” — cosmetic. Fine.
- “Anti-dandruff,” “controls flakes,” “treats itchy scalp” — drug claims. Anti-dandruff shampoos are OTC drugs with their own monograph (active ingredient, Drug Facts panel); a handmade bar can't make these claims;
- “Stimulates hair growth,” “prevents hair loss,” “thickens thinning hair” — drug claims (affecting the structure or function of the body);
- “Treats scalp psoriasis / eczema / seborrheic dermatitis” — drug claims.
3. The ingredient list (21 CFR 701.3)
- Ingredients in descending order of predominance; ingredients at 1% or less may follow in any order; color additives last;
- Use INCI names — Sodium Cocoyl Isethionate, not “SCI”; Butyrospermum Parkii (Shea) Butter, not “shea butter” alone;
- A saponified bar may be declared by its as-resulting names — Sodium Olivate, Sodium Cocoate, Glycerin… — instead of listing oils plus lye (the lye is consumed in saponification);
- Fragrance oils may be declared simply as “Fragrance”; essential oils are listed by their INCI names;
- Minimum letter height is 1/16"; on packages with under 12 square inches of labeling surface, 1/32" is permitted.
4. Net weight, identity, and your name
- Identity (“shampoo bar”) on the front panel;
- Net weight in dual units, e.g. Net Wt 3.5 oz (99 g), in the bottom 30% of the principal display panel, type size scaled to label area (21 CFR 701.13);
- Business name and place of business; “Distributed by…” if you don't make it yourself (21 CFR 701.12).
Selling bars “naked” at a market doesn't waive any of this — the required information must still accompany the product, which is why shrink bands, cigar bands and hang tags exist.
5. The MoCRA contact line (since Dec 29, 2024)
Every cosmetic label must carry a US address, US phone number, or electronic contact through which adverse-event reports can reach you (FD&C Act §609(a)). The small-business exemption from facility registration does not waive this label requirement. A monitored website or email on the band satisfies it.
Generate it instead of memorizing it
The Inkurate generator applies every rule above to your recipe — it detects that “shampoo” makes the bar a cosmetic, converts saponified oils to as-resulting INCI names, orders the list, formats the net-weight line, and adds the MoCRA contact line — citing the regulation for each element. The preview is free.
Generate my shampoo bar label →