How long does it take to go from brief to finished private label face oil?

A stock-formula private label face oil typically requires 6–10 weeks from deposit to delivery. A custom formulation developed by a cosmetic chemist adds 4–8 weeks for R&D and a minimum 12-week accelerated stability study, putting total lead time at 12–18 weeks. Domestic USA manufacturers generally run 6–10 weeks faster than overseas alternatives.