Under 21 CFR § 111.70(e), every dietary supplement must have written Finished Product Specifications (FPS) for identity, purity, strength, composition, and limits on types of contamination that may adulterate or lead to adulteration of the finished batch. Without a complete FPS, neither the brand nor a third-party laboratory can establish that a Certificate of Analysis (COA) actually supports batch release.
An effective FPS defines the exact analytical parameters for each SKU—what characteristics are tested, which analytical methods are suitable for the product matrix, and the specific numerical acceptance criteria (for example, CFU count through shelf life for a probiotic, or per-serving heavy metal limits aligned with federal and California Proposition 65 thresholds for a botanical powder).
Although contract manufacturers maintain internal production specs, those documents often cover only basic physical parameters and standard microbial checks—leaving out active ingredient assay methods, allergen verification, or retailer-specific contaminant limits. Furthermore, under Amazon's Dietary Supplements policy, Testing, Inspection, and Certification (TIC) laboratories review your finished-product specification directly against your physical label.
Blue Ocean Regulatory develops SKU-specific Finished Product Specifications and testing plans that align with 21 CFR Part 111, analytical method suitability, and marketplace/retailer requirements—working with your contract manufacturer and ISO/IEC 17025–accredited labs to confirm the testing plan is practical to execute on every lot.
In practice, when a brand relies on a bare-bones manufacturer specification that only checks appearance, average weight, and basic microbial counts without verifying active ingredient strength or heavy metals, the gap often surfaces only when a retailer or marketplace rejects the COA. Establishing a complete FPS before production ensures both your manufacturer and your testing lab are working toward the exact acceptance criteria your label claims require.