Potassium Sorbate

Description: Potassium salt of sorbic acid (natural fatty acid). Purity >98%. In water potassium sorbate releases sorbic acid which is the active agent. Widely used as preservative in foods & cosmetics. White, fine powder, no odor. Easily soluble in cold water. CAS # 24634-61-5.

INCI Name: Potassium sorbate.

Properties: Very effective preservative active against molds, yeast and aerophile bacteria. Effectiveness is further enhanced by chelating agents (e.g. EDTA). Effective in a wide pH range of 2-6.5 and extended periods of time.

Use: Typical concentration 0.15-0.3% (if used alone) or 0.1-0.2% (if used in combination with other preservatives).

Applications: To preserve all kinds of cosmetic products like creams, lotions, shampoos, makeup & sunscreen products.

More Information: MSDS, Fact Sheet, Sample Recipe

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News & Facts

Zinc Oxides: Which One is Right for You?

Regular zinc oxide has a particle size of >200 nm (nanometer), a visible whitening effect on the skin, is water dispersible, gives great coverage in makeup products and lip balms, and offers good protection in baby care products.
Micronized zinc oxide has a particle size of <200nm (mean 86nm), has a minimal whitening effect on the skin, is water dispersible, offers superior sun protection but does not offer coverage in makeup products.
Micronized zinc oxide coated with silicone offers basically the same features as non-coated micronized zinc oxide but is easier to disperse in oils, and works well in formulas containing carbomers.

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