Sorbic Acid
Professional cosmetic ingredient — not a finished product.
Key Specs
| INCI |
Sorbic Acid |
| CAS No. |
110-44-1 |
| Appearance |
White crystalline powder |
| Solubility |
Slightly water-soluble; soluble in ethanol/PG |
| pH Guidance |
Works best at pH ≤ 5.5 |
| Typical Usage |
0.1–0.3% |
Why formulators like it
- Preservative acid component
- Supports broad-spectrum systems
Formulation Guide
- Dissolve in warm water with pH adjustment or in ethanol/PG
- Incorporate into water phase
- Verify final pH for efficacy
Troubleshooting
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Clumping or poor dispersion? Pre-disperse in glycerin or mix under higher shear.
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Stability concerns? Use chelators/antioxidants and respect pH/temperature limits.
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Texture too thick/thin? Adjust gums, electrolytes, or solvent ratios.
Storage & Safety
Store tightly closed in a cool, dry place away from light and heat. For external use only. Patch test finished products before regular use.
