PoreIQWatch out for · Potential irritants
Alcohol Denat.
A drying alcohol used to make formulas feel light and dry down fast. High amounts can irritate dry or sensitive skin.
- Also listed as
- SD alcohol, Denatured alcohol, Ethanol
- Best for
- Some very oily skin types, in small amounts
- When to use
- —
What it is
Denatured alcohol helps products absorb quickly and feel weightless. Near the top of an ingredient list it can be drying. Fatty alcohols such as cetyl or cetearyl alcohol are different: they are moisturizing and not a concern for most people.
Benefits
- Lightweight, fast-drying feel
- Helps some ingredients penetrate
Watch-outs
- Can dry and irritate when high on the ingredient list
- Not the same as fatty alcohols (cetyl, stearyl, cetearyl)
How to use it
Check where it appears on the list. If it is in the first few ingredients and your skin is dry or sensitive, look for an alternative.
Frequently asked questions
What does alcohol denat. do for skin?
A drying alcohol used to make formulas feel light and dry down fast. High amounts can irritate dry or sensitive skin.
Is cetearyl alcohol bad for skin?
No. Cetearyl alcohol is a fatty alcohol that softens skin. The drying type is denatured alcohol (alcohol denat.).
Related guides
Similar ingredients
General cosmetic information, reviewed against public guidance such as the American Academy of Dermatology. Patch test new products. For medical concerns, see a dermatologist. Last updated 2026-10-22.