cosmetic preservative system consultant for hire

How long does preservative system development take?

Initial formula assessment and preservative selection takes 1–2 weeks. Challenge testing (ASTM D4768 or comparable) typically requires 4–8 weeks. Full optimization with retesting may extend to 12 weeks. Timeline depends on whether you use existing formulas or develop new ones. AJ Cosmo Labs consultants can provide detailed timelines after reviewing your brief.

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