I am one of those users who spend on tried and tested brands even if their price is extremely expensive. I decided to try this product as it seems to be the only Indian brand selling the HCL version (which is extremely tolerable by the human body). To my surprise this product works beautifully. No jitters and anxiousness (which you usually get with the "Yohimbe" version - the natural bark extract) and super effective in raising body temp which will lead to fat burn. Extremely recommended buy.Please note no fat burner is a magic pill. So if you don't intend on following a good diet and don't intend to workout then don't watlste your money, but if you are someone who is serious about your training and Diet, go for this product