Sorbic Acid
Sorbic Acid
Also known as: 2,4-Hexadienoic Acid · E200
Preservative
“A natural preservative effective against mould and yeast at low pH.”
What it does
Sorbic acid is the acid form of potassium sorbate. Like its salt, it is most effective in low-pH (acidic) formulations and works primarily against yeasts and moulds. It is considered a natural preservative, originally derived from mountain ash berries, and is approved in both food and cosmetics.
Benefits
- Effective against yeast and mould
- Natural origin — suitable for clean beauty
- Works well in acidic formulations
How to layer
☀️ Morning routine
Cleanser
Toner
Serum
Moisturiser
SPF
🌙 Evening routine
Cleanser
Toner
Serum
Moisturiser
Face Oil
After cleansing, before moisturiser
Good for
All skin
Works well with
Heads up
- ⚠Limited antibacterial activity alone — usually paired with other preservatives
How to use
A background preservative ingredient. No special application needed.
Typical concentration: 0.06–0.6% in formulations