Potassium Sorbate (067/178) *Plant origin
Potassium Sorbate (067/178) *Plant origin
POT
8/10
Concern level
High concern
Potassium sorbate is the potassium salt of sorbic acid and a widely used preservative in cosmetics and food. It is mainly active against yeast and molds, with weaker antibacterial activity.
Pore-clogging
Non-comedogenic
Pregnancy
Safe
Regulatory
No data
Chemical Properties
Molecular Weight
150.22 g/mol pH Range
3.50 - 6.00Typical Concentration
0.05% - 1.00%CAS Number: 24634-61-5
Skin Type Compatibility
dry skin7/10
oily skin8/10
sensitive skin6/10
acne prone8/10
mature skin7/10
normal skin8/10
Interactions
incompatible with: Avoid relying on it alone in high-pH formulas; efficacy declines as pH increases., Often paired with other preservatives for broader antimicrobial coverage.
Risks & Warnings
Can cause mild irritation or rare contact allergy, especially on compromised skin. Preservative efficacy drops as pH rises above about 6, so formula design matters.
Vegan Cruelty-Free
