Potassium Sorbate

Potassium Sorbate (CAS 24634-61-5) – Cosmetic Grade Granules

Potassium Sorbate is a widely used cosmetic preservative known for its effectiveness against yeast and mold in water-based formulations. It appears as a white crystalline powder or granule with high stability and good compatibility with modern cosmetic preservation systems.

This ingredient is commonly used to support preservative systems in creams, lotions, and personal care products, helping maintain product stability and shelf life. Potassium Sorbate is particularly effective in mildly acidic formulations and is frequently used alongside preservatives such as sodium benzoate or phenoxyethanol.

Chemical Information

Chemical Name: Potassium Sorbate

INCI Name: Potassium Sorbate

Molecular Formula: C₆H₇KO₂

Molecular Weight: 150.22 g/mol

CAS Number: 24634-61-5

Appearance: White crystalline powder or granules

Odor: Mild or odorless

Solubility: Highly soluble in water

Purity: Typically ≥ 99%

Key Applications of Potassium Sorbate

Cosmetic & Personal Care Industry

Potassium Sorbate is widely used in cosmetic and personal care products including:

Skincare creams and lotions
Facial cleansers and toners
Serums and gels
Hair-care formulations
Liquid cosmetic products
Natural and preservative-conscious formulations

In cosmetic systems, Potassium Sorbate primarily functions as a preservative targeting yeast and mold. It is often used as part of a broader preservation system to maintain microbial stability and protect formulations from contamination.

Potassium Sorbate performs best in acidic formulations, typically below pH 5.5, where its antimicrobial activity is most effective.

Pharmaceutical Applications

In pharmaceutical and dermaceutical products, Potassium Sorbate may be used as:

A preservative component in topical preparations
A microbial stability enhancer in liquid formulations
A supporting preservative in dermatological products

Its established safety profile and stability make it suitable for a wide range of regulated formulations when used within recommended limits.

Industrial Applications

In specialty chemical and formulation environments, Potassium Sorbate may function as:

A yeast and mold inhibitor in aqueous systems
A microbial stability component in liquid formulations
A preservation support agent in formulation systems

Its high solubility and compatibility with other preservatives make it suitable for modern formulation approaches.

Storage & Handling

Store in a cool, dry, well-ventilated area
Keep container tightly closed
Protect from moisture and contamination
Use appropriate personal protective equipment during handling

Potassium Sorbate remains a widely used preservative in cosmetic, pharmaceutical, and formulation industries due to its effectiveness against yeast and mold, formulation compatibility, and contribution to stable preservation systems.