Olini cosmetic sea buckthorn oil is cold-pressed and unrefined. It retains its most valuable properties. Sea buckthorn oil in cosmetics: Sea buckthorn grows primarily in Siberia (hence its name Siberian sea buckthorn). It is commonly called the Russian pineapple, and rightly so, as its properties make it quite the pineapple among cosmetic oils. Sea buckthorn berries contain: strong antioxidants