Expect 6–16 weeks from an approved brief to a stability-tested, finalized formula. This timeline includes initial prototype development, iterative sample revisions, preservative efficacy testing (PET), and a basic accelerated stability study. Packaging sourcing and filling can add 4–8 more weeks. Posting a detailed brief on AJ Cosmo Labs — including desired actives, claims, and certifications — helps chemists give you accurate timelines upfront.
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