Claims Substantiation and the PIF for Private Label Skincare FAQ

Data: EU cosmetics rules require a Product Information File to be kept for each cosmetic, holding the product description, the safety report, the manufacturing method, and the evidence of the effect claimed for the product.

Judgment: Build the PIF and the claim file as one indexed set, because an authority or a challenger will ask for both at once and a buyer who cannot locate the claim evidence has a claim problem.

Source: European Commission - EU Cosmetics Sector and PIF Requirements (2024)

Data: Truth-in-advertising rules require that objective claims be supported by competent and reliable evidence, and the burden rests on the advertiser to hold that evidence before the claim is made.

Judgment: Substantiate before printing, because a claim challenged after launch is defended with evidence that had to exist at the time the claim was made.

Source: U.S. FTC - Truth in Advertising and Claim Substantiation (2024)

Data: Ingredient safety assessments provide a reference basis for ingredient-level conclusions, supporting the ingredient-backed claims that are the lowest-strength tier of the evidence ladder.

Judgment: Treat an ingredient reference as the floor, not the ceiling, because a claim that moves from "contains" to "does" needs its own product-level evidence.

Source: Cosmetic Ingredient Review (CIR) - CIR Ingredient Safety Assessments (2024)

What is a Product Information File in cosmetics?

A Product Information File is the compliance dossier that holds the product description, the safety report, the manufacturing method and GMP statement, and the evidence supporting the product's effects. In the EU it is a legal requirement for placing a cosmetic on the market, and a competent authority can request it at any time. It is a safety and compliance file, not a marketing document. A complete PIF proves the product is safe and properly made; it does not by itself prove each claim printed on the pack.

Is a PIF the same as claims substantiation?

No, and the confusion is costly. A PIF holds safety and compliance evidence, while claims substantiation is the narrower evidence set that supports each marketing claim on the label or in promotion. A product can have a complete PIF and still carry a claim that nothing in the dossier supports. The two files answer different questions: the PIF asks whether the product is safe and compliant, and the claim file asks whether each claim is true and evidenced.

What evidence substantiates a cosmetic claim?

The evidence type depends on the claim wording. Performance claims such as "hydrates for 24 hours" need instrumental or clinical studies. Sensory claims such as "absorbs quickly" need consumer perception studies. Durability claims need stability data. Ingredient-backed claims such as "contains vitamin C" need an ingredient reference. The strength of the evidence must match the strength of the claim, and the evidence must exist before the claim is printed, not be generated after a challenge.

What should a buyer ask a manufacturer about claims?

List every claim on the label and in the ads, then ask the manufacturer to point to the specific evidence file behind each one. For each claim, request the study or reference, and flag any claim with no file. Ask whether the substantiation covers the exact formula version being shipped, because a claim supported on an earlier development batch does not automatically cover a later formula change. A manufacturer that answers "trust us, it works" is confirming the claim has no evidence.

How does a buyer build a claim map before launch?

Build a one-page claim map in five steps: transcribe every label and ad claim, classify each by strength (ingredient, sensory, functional, comparative), locate the evidence file behind each, flag the claims with no file, and then decide whether to reword or substantiate each gap. The map turns a vague liability into a visible list of exposure. Complete it before the label is printed, so the brand knows what it can defend and what it must reword.

Why does an ingredient reference not justify a strong claim?

Because an ingredient reference supports only that the ingredient is present and safe, not that the product does what the claim says. A claim that moves from "contains vitamin C" to "brightens skin in seven days" needs product-level testing, not a borrowed ingredient profile. Treating an ingredient reference as the ceiling invites a challenge the brand cannot answer. The ingredient reference is the floor, and the claim must be substantiated at the product level to match its strength.