Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Linoleic acid (LA), an essential omega-6 polyunsaturated fatty acid, has substantial scientific support for its use in general skin care. LA is a key component of the skin barrier, particularly in the formation of ceramides that help maintain skin hydration and integrity. Multiple studies have demonstrated that a deficiency in linoleic acid leads to increased skin dryness, scaliness, and impaired barrier function. Topical application of LA has been shown to improve barrier repair in both healthy and diseased skin, including conditions like atopic dermatitis. Additionally, LA exhibits anti-inflammatory properties and can modulate skin cell proliferation and differentiation, which is important for maintaining healthy skin structure.

Clinical research indicates that linoleic acid can help reduce the severity of acne and hyperpigmentation. For example, a study published in the "Journal of Investigative Dermatology" found that topical LA significantly decreased the size of microcomedones in acne patients. LA’s lightweight, non-comedogenic properties also make it suitable for various skin types, especially oily and acne-prone skin. Moreover, LA is used in cosmetic formulations to enhance skin smoothness and elasticity, and to reduce trans-epidermal water loss (TEWL).

Overall, the evidence for the use of linoleic acid in skin care is robust, supported by both basic science and clinical trials, justifying its widespread inclusion in modern dermatological and cosmetic products for maintaining and improving general skin health.

More about linoleic acid (LA)
More about Skin Care (general)

Other ingredients used for Skin Care (general)

Other health conditions supported by linoleic acid (LA)

Products containing linoleic acid (LA)

Nature's Sunshine Evening Primrose Oil