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Under the Modernization of Cosmetics Regulation Act (MoCRA), fragrance is no longer a simple “black box.” Brands must now hold safety substantiation records for the finished cosmetic product—including the scent components. This guide clarifies…
Under the Modernization of Cosmetics Regulation Act (MoCRA), fragrance is no longer a simple “black box.” Brands must now hold safety substantiation records for the finished cosmetic product—including the scent components. This guide clarifies exactly what evidence you need to retain for fragrance, how to structure your documentation, and how to stay audit-ready without putting your proprietary blends at risk.
Before MoCRA, the FDA did not require cosmetic companies to share safety data or to register their products. Fragrance often appeared as a single line on the label, and the underlying formula was protected as a trade secret. Now, the responsible person (the brand or manufacturer named on the label) must ensure and document that the entire product, fragrance included, is safe for consumers under labeled or customary conditions of use. The law makes no exception for fragrance—its safety must be substantiated, and records must be kept for at least 3 years after the last shipment.
The FDA expects a “basis” for your safety conclusion. For fragrance, this means you need to keep either the full component list and safety data for each component, or a credible expert safety assessment that covers the entire fragrance blend. The evidence must be robust enough to show you considered all foreseeable risks: skin sensitization, phototoxicity, inhalation exposure for sprays, and potential chronic effects from leave-on products.
Organize the documentation in a way that an FDA investigator can quickly understand. The table below maps each evidence type to its purpose and retention tip.
| Evidence Item | Key Purpose | What to Retain |
|---|---|---|
| Fragrance formula (quantitative list) |
Identify all ingredients for hazard assessment | List with CAS numbers, percentages, and allergen highlights; keep supplier correspondence confirming formula currency. |
| Safety certificate | Provide expert conclusion when full data is inaccessible | Signed statement from toxicologist/supplier, citing test data or in silico models, with date and product name. |
| IFRA certificate or compliance statement | Demonstrate adherence to industry self-regulation for sensitization | Current IFRA Certificate (updated annually), mapped to your product’s category and use level. |
| Allergen breakdown | Meet retailer and emerging regulatory expectations | List of 80+ extended allergens with concentrations; if any exceed 0.01% in rinse-off or 0.001% in leave-on, include a risk justification. |
| Stability & compatibility data | Show the scent remains safe over the shelf life | Finished product stability testing results (physical, chemical, and olfactory) under intended packaging. |
| Exposure calculation | Confirm safe exposure margins | Documented rationale for daily exposure amount (e.g., based on product type, application site, frequency, and retention). |
Many brands rely on fragrance suppliers for safety data. Requesting a full formula may be impossible, but you can still negotiate for a defensible documentation package:
Keep all communications as part of your safety substantiation record; the “reasonable reliance” on a supplier’s expertise is acceptable under MoCRA as long as you can produce the documentation.
No. The IFRA certificate shows adherence to industry standards but does not replace a full safety assessment. Under MoCRA, you need a documented conclusion that your finished product, with that fragrance at that concentration, is safe. The IFRA certificate is one piece—you still need the exposure consideration and the overall toxicological evaluation.
This is common. In that case, obtain a comprehensive safety certificate from the fragrance house or an independent toxicologist, stating the blend has been assessed for its intended use in your product category. The certificate must reference the blend’s internal code, batch traceability, and the safety endpoints reviewed.
Records must be maintained for 3 years after the last shipment of that formulation. If you reformulate or change the fragrance concentration, a new assessment is required. Additionally, review annual updates to IFRA Standards and allergen regulations to ensure ongoing compliance.
No. Facility registration and product listing are separate administrative steps. Safety substantiation is a pre-market or concurrent requirement; you must have the evidence before you sell the product, and you must keep it ready for inspection.
Ready to compile your fragrance safety dossier or need a toxicological review of your current portfolio? Request a Quote and our regulatory specialists will help you organize the exact evidence package MoCRA demands.
With more than 20 years of experience in OEM/ODM/Private Label Cosmetics, I'd love to share valuable knowledge related to cosmetics & skincare products from a top-tier Chinese supplier's perspective.
