A by-product of winemaking, this oil has been in existence for over 6,000 years. Early Europeans used grapeseed oil to treat eye and skin diseases. Grapeseed oil is considered to be the richest source of Omega-6 fatty acid, and is also loaded with Vitamins C, D and E, which help reduce wrinkles and diminish scars. It contains polyphenols and antioxidants that slow down aging, reduce acne and tighten the skin, giving it a satiny feel. It can minimise dark circles and strengthen the muscles around the eyes. The oil can also double up as a toner as well as moisturiser, thanks to its non-greasy texture.