Most barrier lipid ingredients share a general approach. Free Fatty Acids is more targeted than most. Third component of the barrier lipid trio; linoleic acid is anti-inflammatory and essential.

The scientific name is Linoleic Acid, Oleic Acid, etc.. Third component of the barrier lipid trio; linoleic acid is anti-inflammatory and essential. This mechanism is consistent across properly formulated products, which means the real variable is concentration and delivery system.

Typical working concentration is 0.1–5%. Best suited to dry, compromised barrier, acne-prone skin. Primary applications: barrier repair, anti-inflammatory, emollient.

Works well with: Ceramides, cholesterol, niacinamide.

Linoleic acid deficiency linked to acne; oleic acid is more occlusive.