Primrose oil is extracted or pressed from the seeds of the evening primrose. Primrose oil is rich in gamma linolenic acid, a substance that is a precursor to prostaglandins in the body, linoleic acid and vitamin E, both of which are antioxidants. Studies  

Lecithin helps prevent cholesterol and other fats from accumulating on and in artery walls by aiding in 'reverse cholesterol transport', the transportation and metabolism of fats away from the arteries and back to the liver. More Info   Studies   Articles

Silymarin, a flavonoid complex extracted from milk thistle seeds, is an important contributor to the support of healthy liver function. In in vitro studies with silymarin have also demonstrated antioxidant activity and the ability to inhibit lipid peroxidation of cellular membranes. Studies   Articles

If you only were to take ten supplements, these are the ten that we'd recommend. Studies  

One study showed that the highest concentration of vitamin D in blood serum was associated with longer telomeres in women, suggesting that vitamin D can help protect telomeres. Studies   Articles