How much does it cost to develop a serum to use with an LED face mask?

Custom serum development with a cosmetic chemist typically costs between $1,500 and $8,000 depending on formula complexity, number of actives, and iteration rounds. Stability testing adds another $500–$2,500 per SKU. Founders can post a project brief on the AJ Cosmo Labs iOS app to receive competitive quotes from multiple vetted cosmetic chemists and compare costs transparently before committing.