Sorbic acid (synonym: 2,4-hexadienoic acid) is a natural, straight-chained fatty acid. It is widely been used as a preservative in foods and cosmetics.

For equal preservative power, only three parts of sorbic acid must be used to equal four parts of potassium sorbate.

Purity >99% (FCC grade).

Fine white to off-white, free-flowing powder.

Barely soluble in water (about 1% at 20°C, and 4% at 90°C).

Somewhat better soluble in plant oils and propylene glycol (1% at 20°C and 10% at 90°C).

CAS : 110-44-1

INCI Name : Sorbic acid

Benefits:

• Has antimicrobial activity against molds, yeast and aerophile

bacteria

• Effective in a wide pH range of 2.5-7.

Use:

Typical concentration 0.05-0.3% (if used alone) or 0.05-0.15% (if used in combination with other preservatives).

Under certain conditions, sorbic acid may oxidize and cause slight color changes in the cosmetic product.

This can normally be prevented by adding 0.1–0.3% citric acid to the product. For external use only.

Applications:

All kinds of cosmetic products like creams, lotions, shampoos, makeup and sunscreen products.