‘Vitamin F’: What the Misleading Name Really Means and Where to Find It

The term “vitamin F” can appear in health articles or on skincare products, suggesting another vitamin the body needs. In fact, it refers to essential fats rather than a vitamin.

The name is commonly used for two fatty acids: linoleic acid, an omega-6 fat, and alpha-linolenic acid, an omega-3 fat. Both are considered essential because the body cannot make them in sufficient amounts and must obtain them through food.

These fats help maintain cell membranes and support normal body functions. They also contribute to the skin’s protective barrier, helping explain why the “vitamin F” label appears on some skincare formulations.

Dietary sources include vegetable oils, nuts and seeds. Sunflower and soybean oils provide linoleic acid, while flaxseeds, chia seeds and walnuts supply alpha-linolenic acid.

Despite its vitamin-like name, “vitamin F” is best understood as a label for important dietary fats. Its appearance on a cosmetic product should not be confused with meeting the body’s nutritional needs through food.