Thymoquinone Rich Fraction (TQRF) is a nutraceutical product extracted from Nigella sativa seeds using Supercritical fluid extraction (SFE) system. The bioactive compound is Thymoquinone (TQ) which is highly volatile. TQRF has a very high anti-oxidant activity and thus has the capacity to maintain optimum health. It is very efficient in the prevention and treatment of degenerative diseases such as cardiovascular diseases and cancer. TQRF is also effective in slowing down the aging process. TQRF also protects neurons from the toxic effects of beta amyloid protein via inhibition of apoptosis (programme cell death) mechanism.