Tools and directories

The check, before the labels are printed

Updated October 2026

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One: who is the product for?Two: is it a foaming detergent bath product?Three: is the safety substantiated, and dated?Four: what else needs a warning?Five: does the closure have a liner that seals?And check the container suits the format at all File the answers with the formula Four of the five are decided before anything is made References

Five questions. Four are about words and one is about a component.

One: who is the product for?

Adults only, children, or general use. For a foaming product that decision settles whether the prescribed caution is required, because the exemption is for products labeled as intended for use exclusively by adults.

Two: is it a foaming detergent bath product?

Intended to be added to a bath to produce foam, and containing a surface-active agent serving as a detergent or foaming ingredient. Both limbs. The product name is irrelevant, and a foaming bomb can be inside it.

Three: is the safety substantiated, and dated?

Each ingredient and the finished product, before marketing. The alternative is a conspicuous statement on the principal display panel that the safety has not been determined, which is not a real option.

Four: what else needs a warning?

A cosmetic label bears a warning whenever necessary or appropriate to prevent a health hazard. For bath products, slipperiness, essential oil sensitization and not-for-broken-skin are the candidates worth thinking through.

Five: does the closure have a liner that seals?

For anything reactive or hygroscopic, which is six of the eight leaves. An induction seal if you can seal it, a good compressed liner if not, and a desiccant sized to the headspace and fresh at packing.

And check the container suits the format at all

Bath oil and bubble bath are liquids and belong on a bottle shelf rather than a wide-mouth jar. The archetype says scoop for all eight leaves and that is wrong for those two.

File the answers with the formula

Audience, foaming determination, substantiation file, warning set, container and liner. Changing the audience changes the label, and changing the formula reopens the substantiation and often the moisture behavior too.

Four of the five are decided before anything is made

Audience, foaming determination, substantiation and the warning set are all settled on paper, and only the liner is a purchase. That is the shape of this category and the reason the label is the expensive part.

References

21 CFR 740.17, Foaming detergent bath products, which defines such a product as anything intended to be added to a bath to produce foam that contains a surface-active agent serving as a detergent or foaming ingredient, and requires a prescribed caution and adequate directions for safe use except for products labeled as intended for use exclusively by adults. law.cornell.edu

21 CFR 740.10, which requires each ingredient and each finished cosmetic product to be adequately substantiated for safety prior to marketing, and makes an unsubstantiated ingredient or product misbranded unless it bears the conspicuous statement "Warning - The safety of this product has not been determined" on the principal display panel. law.cornell.edu

21 CFR 740.1, which requires the label of a cosmetic product to bear a warning statement whenever necessary or appropriate to prevent a health hazard that may be associated with the product. law.cornell.edu

21 CFR 701.3, the cosmetic ingredient declaration, which requires ingredients in descending order of predominance on the label of a cosmetic in package form. law.cornell.edu

Written from federal regulation, not from a formulation bench. Substantiating the safety of a cosmetic is a real body of work and nothing here is a substitute for it. Whether a particular product is a foaming detergent bath product within 21 CFR 740.17 turns on what it is and what it is intended for.