Snapshot
- Overview
- A thyme-derived compound used for scent and to help preserve formulas.
- Category
- Fragrance, Preservative
- Type
- Fragrance
Thymol
Thymol is a monoterpenoid phenol that occurs naturally in thyme and other Lamiaceae plants, and is commonly isolated for cosmetic use. It's used as a fragrance component and preservative booster, though it's notably volatile and carries a recognized risk of irritation at higher levels.
Like this ingredient?
Our take
Is Thymol a Good Ingredient?
It rates Fair because it provides fragrance and a preservation boost, but its volatile, phenolic nature raises a notable irritation and sensitization risk, so any benefit has to be weighed against very low use levels and sensitive-skin caution.
What it does
Skin Benefits
Provides a clean, herbal scent and can help products stay fresher by supporting preservative systems; may irritate very sensitive skin. Best suited to low concentrations.
Where you'll find it
Uses in Skincare & Cosmetics
Common in cleansers, scalp tonics, and deodorant formats where fragrance and freshness are desired, often alongside other preservation components.
Before you use it
Safety
Can cause stinging or irritation, particularly on sensitive or compromised skin; best used at low concentrations and patch tested when possible. Avoid the eye area and reduce frequency if tingling or redness appears.
Products with Thymol
