How long does it take to develop a private label paint line?

Expect roughly 8 to 16 weeks from brief to first production fill. Formulation and color matching take 2–4 weeks, sample iterations another 2–4 weeks, and stability, scrub, and open-time testing add more. Packaging compliance also factors in. Tracking each sample round inside the AJ Cosmo Labs app keeps your timeline visible and approvals moving.