Potassium Sorbate

Potassium sorbate is a widely used, effective preservative employed in cosmetic, personal care, food, and pharmaceutical formulations to inhibit the growth of yeast, mold, and fungi. It is the potassium salt of sorbic acid and appears as a white to off-white, odorless crystalline powder or granules. Due to its high water solubility and mild sensory profile, potassium sorbate is easy to incorporate into a wide range of formulations.

In cosmetic and personal care products, potassium sorbate is valued for its good safety profile and global regulatory acceptance, making it a popular choice for clean-label and mild product positioning. It is particularly effective in acidic formulations, typically performing best at a pH below 6.0, where its antifungal activity is strongest. Because it primarily targets yeast and mold rather than bacteria, potassium sorbate is often used in combination with other preservatives to achieve full broad-spectrum protection.

Potassium sorbate does not significantly affect product color, odor, or texture, which helps maintain the desired aesthetic and sensory qualities of the finished product. It is commonly used in creams, lotions, serums, gels, cleansers, shampoos, and natural or organic cosmetic formulations, as well as in food products such as beverages, baked goods, and dairy alternatives.

Typical usage levels vary depending on application and regulatory guidelines, but it is generally effective at low concentrations. When formulated correctly and within approved limits, potassium sorbate helps extend shelf life, maintain product safety, and protect formulations from microbial spoilage.

Overall, potassium sorbate is a reliable, mild, and versatile preservative that supports modern formulation needs while meeting consumer expectations for safety and product stability.

CAS No-24634-61-5