Stock formulas typically ship 4 to 8 weeks from purchase order to delivery. Custom retinol formulations take 8 to 16 weeks because the lab must develop the formula, run stability and challenge testing, and finalize a compliant ingredient list. You can track every production stage and get push updates inside the AJ Cosmo Labs iOS app so timelines stay transparent.
Read the full guide on private label retinol cream manufacturer low moq →