A standard cosmetic formula development cycle runs 8–20 weeks from brief to approved prototype, depending on formula complexity and the number of revision rounds. Layering in third-party stability testing adds 8–12 weeks. COSMOS certification review can add another 4–8 weeks on top. Posting a detailed brief on AJ Cosmo Labs at the outset — including target certification, fill format, and MOQ — helps cosmetic chemists scope accurately and reduces back-and-forth that eats into timeline.
Read the full guide on Cosmetic chemistry certifications →