Quest Flavanon 4 contains standardised non-soya based plant isoflavones, from red clover. Each tablet provides 40mg of combined isoflavones. May be chosen by women of menopausal age. Platinum Excellence Range The platinum excellence range of nutritional supplements consists of high strength or innovative products of the highest quality designed for specific health needs. All Platinum Excellence products are backed by scientific research, the highest quality raw materials & industry-leading manufacturing standards & techniques.