Yes, at supported concentrations. In the US, kojic acid serums are regulated as cosmetics under MoCRA — no pre-market approval needed, but safety substantiation is required. The EU allows leave-on use with a completed Cosmetic Product Safety Report (CPSR). Always ask your manufacturer for raw material CoAs and a stability dossier before committing to production.
Read the full guide on private label kojic acid dark spot serum low moq →