Alcohol Denat
Alcohol Denat.
Also known as: Denatured Alcohol · SD Alcohol · Ethanol · Isopropyl Alcohol
SolventAstringent
“A fast-drying solvent that can disrupt the skin barrier with regular use.”
What it does
Alcohol denat (denatured ethanol) is used in skincare as a solvent, astringent, and penetration enhancer. It evaporates quickly, giving products a light feel. However, regular topical use disrupts the skin's lipid barrier, increases transepidermal water loss, and can sensitise skin over time. High in the ingredient list signals a potentially irritating formulation.
Benefits
- Enhances penetration of other actives
- Provides a quick-drying, weightless finish
- Antimicrobial at high concentrations
How to layer
☀️ Morning routine
Cleanser
Toner
Serum
Moisturiser
SPF
🌙 Evening routine
Cleanser
Toner
Serum
Moisturiser
Face Oil
After cleansing, before moisturiser
Good for
Oily skin
Avoid mixing with
Heads up
- ⚠Disrupts the skin's lipid barrier with frequent use
- ⚠Increases water loss (TEWL) and can cause dryness
- ⚠May sensitise or irritate skin, especially if dry, sensitive, or eczema-prone
- ⚠Listed high in an ingredient list indicates a potentially problematic formulation
How to use
Best avoided in leave-on products for dry or sensitive skin. Rinse-off use is less problematic.
Typical concentration: Varies widely; concerning when listed in top 5 ingredients