with 5% withanolides, key ‘actives’ ,for normal psychological function/normal function of the nervous system ,perfect partner to vitamin d3, magnesium, and theanine a revered herb of the indian ayurvedic system of medicine, ashwagandha has long been used to support many aspects of health and wellbeing. the herb is often referred to as ‘indian ginseng’ as it possesses similar adaptogenic properties. our formula provides withanolides - the active compounds found in ashwagandha - at their optimum level of 5% (15mg) per capsule, which is consistent with published studies. our high-performance product contains additional vitamin c and zinc for normal psychological function and normal function of the nervous system. this supplement can be safely taken alongside any of our multis and other popular nutrients like magnesium, vitamin d3, and theanine. we’ve chosen to encapsulate our high-performance formula in capsules, not tablets, as this material can accommodate highly concentrated levels of fine-grade ashwagandha, vitamin c and zinc. our formula comprises the best quality raw materials sourced from reliable, trustworthy suppliers. we use a full-spectrum root extract, which has been the focus of traditional use and published studies. as with all our herbs, our raw material undergoes a sophisticated screening process before being manufactured and packaged in uk factories working to rigorous good manufacturing practice (gmp). this isn’t true of all ashwagandha supplements, where roots are often mixed with aerial parts and other plants. many of these products don’t meet their label claim and, in some cases, contain high levels of contaminants. want to learn more about herbal offerings? have a chat with one of |our expert nutrition advisors//aadvice//class=f-brand !important| who can provide free, confidential advice. find out more about what is the difference between korean ginseng, siberian ginseng and indian ginseng |here//b1103//class=f-brand !important|. what do vitamin c and zinc contribute to? both vitamin c and zinc contribute to the normal function of the immune system. vitamin c also contributes to the reduction of tiredness and fatigue.