طلا معدنی خرد کردن. Colloidal Gold Uses, Benefits, Testimonials | Purest Colloids. Customer Testimonials about the uses benefits of MesoGold brand colloidal gold from Purest Colloids, industry leader in quality purity, Colloidal gold is a suspension of pure gold in water It is used as a mineral supplement to augment the body's immune system Here you will read firsthand ...