Snapshot
- Overview
- A preservative that keeps formulas from spoiling.
- Category
- Preservative
- Type
- Preservative
Dehydroacetic Acid
Dehydroacetic Acid is a ring-structured organic preservative effective within defined pH ranges in cosmetic and toiletry products. Brands include it to curb microbial contamination, extend usable life, and support formula stability alongside other agents.
Like this ingredient?
Our take
Is Dehydroacetic Acid a Good Ingredient?
Good: Proven preservative that performs reliably within suitable pH, often paired with other agents for broader coverage. Sensitization is rare but possible, and activity diminishes if the formula’s pH is not in its effective window.
What it does
Skin Benefits
Reduces risk of spoilage that can alter appearance or odor. Helps keep formulas dependable throughout their intended shelf life within effective pH.
Where you'll find it
Uses in Skincare & Cosmetics
Commonly incorporated into sunscreens, toners, and lotions as a pH-aware preservative component. Also used in hair care like leave-in treatments and rinses to support product longevity.
Before you use it
Safety
Low overall irritation potential, though sensitive users can experience mild reactions. Subject to EU preservative restrictions at up to 0.6% (dehydroacetic acid and its salts). Use as directed within appropriate pH ranges.
Products with Dehydroacetic Acid
