Vitamin F (Essential Fatty Acids)
Vitamin F (Essential Fatty Acids) — a traditional name for essential fatty acids, primarily linoleic acid (omega-6) and alpha-linolenic acid (omega-3), that the body cannot synthesize on its own. In skincare these lipids help reinforce the skin barrier, support moisture retention, and soften the look of dry, rough patches.
Key points
- Vitamin F is not a true vitamin but a historical term for the essential fatty acids linoleic and alpha-linolenic acid.
- Linoleic acid is a key structural component of skin-barrier lipids and is often lower in oil-prone or acne-prone skin.
- It is commonly delivered through plant oils such as sunflower, safflower, rosehip, and evening primrose.
- Topical essential fatty acids can help reduce transepidermal water loss and improve the feel of dry or compromised skin.
Frequently asked
Is vitamin F the same as fish oil?
No, vitamin F is a general term for essential fatty acids like linoleic and alpha-linolenic acid, which come from many plant oils, not specifically from fish oil.
Can vitamin F be used on oily or acne-prone skin?
Linoleic-acid-rich oils are often well tolerated by oily skin, though individual responses vary, so patch testing a new product is sensible.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.

