Sea-buckthorn identifies a group of species in the genus Hippophae, the most commonly used of which is Hippophae rhamnoides. Oil can be extracted from either the seeds or the pulp of the fruit.
Oils from sea-buckthorn seeds and pulp differ considerably in fatty acid composition. While linoleic acid and α-linolenic acid are the major fatty acids in seed oil, sea buckthorn pulp oil contains approximately 65% combined of the monounsaturated fatty acid, palmitoleic acid, and the saturated fatty acid, palmitic acid. Few other vegetable oils contain a similar quantity of these fatty acids. Both the seed and pulp oils are rich in tocopherols, tocotrienols and plant sterols. In addition, the pulp oil contains especially high levels of carotenoids.[