My freind is having a ayurvedic fairness cream at very resonable rate and it works as well is it worth taking?

actually he makes it by himself mixing some ayurvedic things and the cream which comes is very good it makes ur skin fair and shiny it really works i hav seen d results by myself and he gives it for 500 rs tht cream lasts for 1 month and then again u hav to buy but it really works far better then the creams available in market....but is advisable to take..