Snapshot
- Overview
- A preservative booster that helps keep formulas fresh for longer.
- Category
- Preservative
- Type
- Preservative
P-Anisic Acid
p-Anisic acid is an aromatic carboxylic acid used in cosmetics as a preservative booster and mild masking agent, working best in acidic systems. It's included to extend product freshness and strengthen how well primary preservatives perform.
Like this ingredient?
Our take
Is P-Anisic Acid a Good Ingredient?
Rated Good because it reliably boosts preservation in low-pH formulas and works effectively at low use levels. It's typically well tolerated, though very sensitive skin may notice mild stinging in acidic products, which is what keeps it from a higher rating.
What it does
Skin Benefits
Supports product longevity and helps keep formulas feeling fresh, with a side benefit of softening unwanted scent notes in acidic environments. Helps maintain overall product quality over time.
Where you'll find it
Uses in Skincare & Cosmetics
Common in low-pH serums, gels, and cleansers to reinforce preservation systems. Also used in toners to help keep formulas stable during everyday use.
Before you use it
Safety
Generally considered safe at typical cosmetic concentrations. As an acid in low-pH formulas, it can cause mild, transient irritation on sensitive or compromised skin; patch test if prone to sensitivity.
Products with P-Anisic Acid
