Common leave-on concentrations are 0.25%, 0.5%, and 1%, often using encapsulated retinol or granactive retinoid to improve stability and reduce irritation. Higher percentages need stronger packaging like airless pumps and supportive ingredients such as niacinamide or ceramides. Cosmetic chemists on AJ Cosmo Labs can advise on the right percentage and base for your target customer before you order samples.
Read the full guide on private label retinol cream manufacturer low moq →