CHANAVA CO., LTD. We are the manufacturer and supplier of hair treatment products from Thai natural herbal extracts under registered trademark of "Nanovech".we select each hair conditions for researching to deserve products which appropriate with every type of hair conditions. All Nanovech products accepted by our beloved customers from generation to generation over 20 years are registered and approved by the Food and Drug Administration of Thailand (FDA). Our intention is to blend and balance ancient wisdom of Thai herb with the modern medication so that it going to be the pure natural herbal extracts with Nanotechnology.we focus on the root cause of problems of hair conditions so as to research, namely : hair loss, hair fall, thinning hair, bald, fungal hair infection, itchy scalp.Besides that, we also try to do our best to improve and develop our products in order to provide the solution for your hair strong, healthy, soft and shiny.