For a stock formula program, expect 16 to 24 weeks from formula selection to retail-ready product. That timeline includes one to two sample rounds, accelerated stability testing (minimum 12 weeks at 45°C), third-party SPF testing, and label compliance review. Custom formula development adds 4 to 8 weeks on top of that. Posting a detailed brief on AJ Cosmo Labs helps manufacturers quote accurately from day one.
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