Ingredients

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.

Encyclopedia

Further reading

This entry was written and checked against the sources below. They are published by clinical and scientific bodies, they are listed most readable first, and each one opens in a new tab. They are background for the whole entry rather than footnotes to individual sentences.

  1. Omega-3 Fatty Acids NIH Office of Dietary Supplements Clinical guidance ods.od.nih.gov
  2. Linoleic Acid PubMed Central Peer-reviewed, open access pmc.ncbi.nlm.nih.gov
  3. The Role of Linoleic Acid in Skin and Hair Health: A Review PubMed Central Peer-reviewed, open access pmc.ncbi.nlm.nih.gov
  4. Skin barrier function DermNet NZ Clinical guidance dermnetnz.org
  5. Lipids and the Permeability and Antimicrobial Barriers of the Skin PubMed Central Peer-reviewed, open access pmc.ncbi.nlm.nih.gov
  6. Skin Lipids and Their Influence on Skin Microbiome and Skin Care PubMed Central Peer-reviewed, open access pmc.ncbi.nlm.nih.gov

SYNC does not publish medical advice. Nothing here replaces a consultation with a doctor or a pharmacist about your own skin.