Across major markets, authorities expect brands to support their claims with adequate evidence. While requirements vary by region, the underlying principle is consistent: cosmetic claims must be truthful, verifiable, and not misleading.
Why Claims Substantiation Matters
Consumers rely on cosmetic claims to make purchasing decisions. Regulators view unsupported or exaggerated claims as a risk to fair competition and consumer protection. Companies that fail to substantiate claims may face product recalls, warning letters, fines, or reputational damage.
Claims substantiation also helps manufacturers align product development, formulation, and marketing. Scientific evidence ensures that what appears on packaging, websites, and advertising accurately reflects product performance.
The European Union Approach
The European Union has one of the most structured systems for cosmetic claims. Under Regulation (EC) No 1223/2009 and Commission Regulation (EU) No 655/2013, claims must comply with six common criteria: legal compliance, truthfulness, evidential support, honesty, fairness, and informed decision-making.
This means that any claim made for a cosmetic product must be supported by appropriate and verifiable evidence. The level of evidence required depends on the type of claim. For example, a basic hydration claim may rely on instrumental testing and consumer studies, while anti-aging or dermatological claims generally require more robust clinical data.
The EU also places strong emphasis on avoiding medicinal implications. A cosmetic product cannot claim to treat or prevent disease, as this would move it into the category of medicinal products.
United States: Advertising and Consumer Protection
In the United States, cosmetic claims are mainly overseen by the Food and Drug Administration (FDA) and the Federal Trade Commission (FTC). The FDA focuses on product classification and safety, while the FTC monitors advertising practices.
Claims must be truthful, not misleading, and supported by competent and reliable scientific evidence. The stronger or more technical the claim, the stronger the evidence expected.
A key challenge in the US is distinguishing cosmetic claims from drug claims. Statements such as “repairs skin structure” or “stimulates collagen production” may cause a cosmetic product to be regulated as a drug, triggering significantly stricter requirements.
Regulatory Developments Across Asia
Asian markets are becoming increasingly influential in shaping global cosmetic compliance standards.
In China, cosmetic regulations under the Cosmetic Supervision and Administration Regulation (CSAR) require companies to substantiate efficacy claims with scientific evidence, and certain claims must be supported by published summaries of testing data.
South Korea, known for its advanced beauty industry, also enforces strict advertising rules through the Ministry of Food and Drug Safety (MFDS), particularly for functional cosmetics such as whitening, anti-wrinkle, or UV-protection products.
Meanwhile, ASEAN countries continue to harmonize requirements through the ASEAN Cosmetic Directive, encouraging a more unified approach to safety, labeling, and claims substantiation across Southeast Asia.
Scientific Methods Used in Claims Testing
Claims substantiation can involve several types of evidence. Instrumental tests measure objective effects such as hydration, elasticity, or sebum reduction. Clinical studies evaluate product performance under controlled conditions, often supervised by dermatologists. Consumer perception studies assess how users experience the product in real-life conditions.
In vitro testing and literature reviews may also support ingredient-related claims, although regulators increasingly expect evidence on the finished product itself.
Importantly, testing should reflect actual conditions of use. Study design, sample size, statistical analysis, and reproducibility all contribute to the credibility of the evidence.
A Growing Global Trend
Many countries outside the EU and US are strengthening oversight of cosmetic claims. Markets such as China, South Korea, Brazil, and ASEAN member states increasingly require scientific justification for marketing statements, particularly for efficacy and “natural” claims.
At the same time, sustainability and environmental claims are receiving growing attention. Terms like “eco-friendly,” “clean beauty,” or “reef-safe” are now being evaluated with the same rigor as efficacy claims.
Building Trust Through Evidence
Claims substantiation is no longer a purely regulatory exercise. It is part of building consumer confidence in an increasingly competitive and scientifically aware market.
For manufacturers, investing in robust claims testing helps reduce regulatory risk and supports credible brand positioning worldwide. For consumers, it provides reassurance that cosmetic products deliver what they promise.
