Black currant oil has the following fatty acid profile:

41 % linoleic acid
17 %, alpha-linolenic acid
14 %, gamma-linolenic acid
15 % oleic acid
7,5 %, palmitic acid
2,9 %, stearidonic acid
1,5 %, stearic acid

Blackcurrant Seed Oil can be an effective addition to formulations for dry, devitalized, damaged and aging skin due to its high gamma linolenic acid content. It is also excellent in products for sensitive skin, eczema or psoriasis. It has anti-inflammatory, antibacterial, antioxidant and anti-ageing properties and helps to repair skin that is sun damaged or rough.

GLA is found in black currant oil or seeds, evening primrose oil, and borage oil. However, there is no research showing GLA to be effective in the treatment of wrinkles.

Sources
Biochemical and Biophysical Research Communications, March 17, 1998, pages 414–420
British Journal of Dermatology, April 1999, pages 685–688
Dermatology, 2000, volume 201, number 3, pages 191–195
Garden of Wisdom