Most private label manufacturers offer both stock and semi-custom options. Stock formulas are fastest — often 4–8 weeks to launch — while semi-custom allows you to adjust actives, fragrance, or texture within the base formula for a modest R&D fee, typically $500–$2,500. Full custom development from scratch requires longer timelines and higher upfront investment.
Read the full guide on private label kojic acid dark spot serum low moq →