Hair Care Product Compliance for the US Market: FDA Requirements Foreign Manufacturers Must Meet

Hair care products — shampoos, conditioners, hair dyes, styling products, treatments, and relaxers — are one of the largest cosmetic categories imported into the United States. Foreign manufacturers exporting hair care products to the US must comply with MoCRA facility registration and product listing requirements, meet US labeling standards, ensure all ingredients and color additives are authorized for US use, and critically, understand which hair care products the FDA classifies as cosmetics and which it classifies as drugs. The classification boundary in hair care is more complex than in most other cosmetic categories, and getting it wrong can result in Warning Letters, product seizures, and import detention.

Which hair care products are cosmetics and which are drugs

Under FDA classification, a hair care product is a cosmetic if its intended use is cleansing, beautifying, promoting attractiveness, or altering appearance. This covers most shampoos, conditioners, styling products (gels, sprays, mousses), and hair dyes that alter color. However, a hair care product becomes a drug — or a dual cosmetic/drug product — if it makes claims to treat, prevent, or cure a disease, or if it claims to affect the structure or function of the body. The most common examples of hair care products that are classified as drugs include anti-dandruff shampoos (which claim to treat dandruff, a dermatological condition), anti-hair-loss products (which claim to stimulate hair growth or prevent hair loss), and lice treatments (which claim to kill parasites).

Anti-dandruff shampoos are regulated under the OTC drug monograph for dandruff (21 CFR Part 358, Subpart H), which specifies approved active ingredients (such as zinc pyrithione, selenium sulfide, coal tar, ketoconazole, and salicylic acid) and their permitted concentrations. Products that contain these active ingredients and make anti-dandruff claims must carry a Drug Facts panel, must be registered as drug products, and must comply with all applicable drug regulations. A shampoo that contains zinc pyrithione but does not make anti-dandruff claims is a cosmetic; the same product with an anti-dandruff claim is a drug. Foreign manufacturers must align their product claims with their intended regulatory classification.

Hair dye regulations and coal tar provisions

Hair dyes occupy a unique regulatory position under the FD&C Act. Section 601(a) of the FD&C Act includes a specific exemption for coal tar hair dyes — provided the product bears a prescribed caution statement and patch test directions, and the product is not intended for use on the eyebrows or eyelashes. This exemption means that coal tar hair dye ingredients are not subject to the color additive certification requirements that apply to other cosmetic colorants. However, the exemption does not extend to all hair dye ingredients — only those derived from coal tar or its derivatives. Non-coal-tar hair dye ingredients must comply with standard color additive requirements. Foreign hair dye manufacturers must verify that each colorant in their formulation either falls under the coal tar exemption (with proper caution labeling) or is an FDA-authorized color additive.

Formaldehyde and keratin treatment concerns

Hair straightening and keratin treatments have been a significant area of FDA enforcement activity. Some keratin treatments marketed as 'formaldehyde-free' have been found to contain formaldehyde or formaldehyde-releasing ingredients at levels that pose health risks — including eye irritation, respiratory symptoms, and allergic reactions. The FDA considers formaldehyde in cosmetics to be a safety concern and has issued multiple safety alerts about Brazilian Blowout and similar keratin treatment products. Foreign manufacturers of hair straightening or keratin treatment products should test their formulations for formaldehyde content, ensure accurate ingredient labeling, and include appropriate warnings if the product releases formaldehyde during use.

Labeling requirements for hair care products

Hair care product labels must comply with all standard cosmetic labeling requirements under 21 CFR Part 701: ingredient list in descending order of predominance, net contents in US customary and metric units, manufacturer or distributor name and address, and product identity on the principal display panel. For hair dyes, the coal tar caution statement and patch test directions must appear on the label. For products containing known sensitizers or irritants, appropriate warning statements should be included. Allergen declarations are not mandatory for cosmetics in the same way they are for food products, but manufacturers should be aware that ingredients derived from major food allergens (such as wheat protein, milk proteins, or soy-derived ingredients) may trigger consumer reactions, and transparent labeling is both a safety best practice and a liability reduction measure.

How FDABridge helps hair care manufacturers

FDABridge provides MoCRA facility registration and product listing services for foreign hair care manufacturers. We help you classify each product correctly — cosmetic, drug, or both — and ensure your FDA filings match your product portfolio. Visit fdabridge.com/cosmetics to see our cosmetics services or fdabridge.com/contact to discuss your hair care product compliance.