Hemp seed oil is made from the hemp plant - Cannabis Sativa - and should not be confused with the subspecies indica, which is the illegal variety that contains the psychoactive compound delta tetrahydrocannabinol (THC), as well as about 60 other cannabinoids. The oil used in cosmetics and skincare products does NOT contain the psychoactive THC ingredient and is therefore not subject to any legal restriction. It contains 50 - 60 % linoleic (LA) and 19% linolenic (LNA) acids, as well as antioxidants in the form of vitamin E and carotene. Phytosterols, phospholipids, as well as a number of minerals, including calcium, magnesium, sulfur, potassium and phosphorus are also present. The profile of the essential fatty acids found in it closely resembles the skin's natural lipids, and it therefore neutralizes the effects of dehydration, and protects against a dry skin. The essential fatty acid - linoleic - found in this oil, as well as its metabolite, gamma-linolenic acid, have proven to have very beneficial therapeutic effects on the skin. These fatty acids contain glycerides, sterols and phospholipids. Fatty acids occur naturally in the skin and are helpful in protection against oxidative damage. Fatty acids can help with supplementation of the skin's intercellular matrix Youthful, properly functioning, skin contains ceramides, but with age the level of ceramides decreases and the polyunsaturated fatty acids that make the ceramides flexible are replaced by less saturated fatty acids. This action, coupled to the slower metabolism of the skin, aids in wrinkle formation and skin aging.
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