Expect 3 to 6 months for a bespoke clean mascara — roughly 4 to 8 weeks per prototype round plus a 12-week accelerated stability study at 40 °C. Brands that start with a semi-custom stock base can compress this to 6 to 10 weeks. Posting a detailed brief on the AJ Cosmo Labs iPhone app helps formulators scope the project accurately upfront, reducing costly revision cycles.
Read the full guide on how to find a formulator for clean mascara formula →