Stearic Acid
Stearic Acid
Also known as: Octadecanoic Acid
EmollientEmulsifierThickener
“A fatty acid that thickens formulas and leaves skin feeling soft.”
What it does
Stearic acid is a saturated long-chain fatty acid found in animal and plant fats. In skincare it functions as an emollient, thickener, and emulsifier. It contributes to the creamy texture of lotions and cleansers and helps restore the skin barrier by replenishing natural fatty acids.
Benefits
- Softens and smooths skin surface
- Helps restore the lipid barrier
- Creates stable, creamy textures in formulations
How to layer
☀️ Morning routine
Cleanser
Toner
Serum
Moisturiser
SPF
🌙 Evening routine
Cleanser
Toner
Serum
Moisturiser
Face Oil
As the last step in your routine
Good for
Dry skinNormal skinSensitive skinCombination skin
Works well with
Heads up
- ⚠Slight comedogenic potential in high concentrations for acne-prone skin
How to use
Found as a base ingredient in cleansers and moisturisers. No special application needed.
Typical concentration: 1–20% depending on product type