Potassium Sorbate (Cosmetic) vs Sodium Dehydroacetate: which is worse?

What is Potassium Sorbate (Cosmetic)?

Potassium sorbate is the potassium salt of sorbic acid, a naturally occurring compound found in rowan berries. It is an antifungal and antiyeast preservative used in cosmetics, food, and personal care products.

What is Sodium Dehydroacetate?

Sodium dehydroacetate is the sodium salt of dehydroacetic acid, a broad-spectrum preservative effective against yeasts, molds, and some bacteria. It is frequently used in combination with benzyl alcohol as part of a natural-positioned preservative system.

Documented risks

Potassium Sorbate (Cosmetic): Potassium sorbate is one of the least allergenic preservatives used in cosmetics. The CIR and EU SCCS have confirmed its safety at permitted concentrations (≤0.6% in EU cosmetics, as sorbic acid equivalent). It is non-mutagenic, non-carcinogenic, and not an endocrine disruptor. Mild skin sensitization is possible but uncommon. It is widely accepted in natural and organic cosmetics certifications.

Sodium Dehydroacetate: Sodium dehydroacetate is permitted in the EU at ≤0.6% (as acid) under Annex V of Cosmetics Regulation 1223/2009. The CIR and SCCS have reviewed it and confirmed safety at permitted concentrations. Potential for skin sensitization is low. No carcinogenic or endocrine effects are documented at cosmetic use levels.