A first prototype typically takes four to eight weeks from brief to bench sample, depending on raw-material lead times and formula complexity. Stability testing — required before most retail or regulatory submissions — adds a minimum of eight to twelve weeks on top of that. Accelerated stability protocols (40°C/75% RH) can compress this to eight weeks. Using the AJ Cosmo Labs iOS app to keep briefs, revisions, and sample tracking in one place reduces back-and-forth delays significantly.
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