Fatty Acids in Skincare
Fatty Acids in Skincare — chains of carbon and hydrogen that serve as essential building blocks of skin lipids and as conditioning agents in many formulations. They help reinforce the barrier, soften the skin surface, and support moisture retention.
Key points
- Fatty acids are a core component of the skin barrier, working alongside ceramides and cholesterol.
- They can be saturated or unsaturated, with essential unsaturated types like linoleic acid supplied through the diet or plant oils.
- In products, fatty acids act as emollients that smooth and soften the skin surface.
- Free fatty acids also contribute to the skin's slightly acidic surface environment, known as the acid mantle.
Frequently asked
What are the main fatty acids used in skincare?
Common ones include linoleic, oleic, palmitic, and stearic acids, often delivered through plant oils and butters.
Do fatty acids moisturize the skin?
Fatty acids act mainly as emollients that soften and smooth, and they support the barrier that helps skin hold onto water.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
