KETO//OS : is your “ketone operating system” it is the First Therapeutic Ketone Supplement on the market. The proprietary blend is owned by Prüvit and is Dr.Approved, Lab Tested, University backed and the technology in KETO//OS is patent pending, developed by one of the most world renown Dr.’s and experts on Ketosis. Prüvit was the first company approved by University of South Florida to acquire the sublicense rights to use this patent pending technology. It is a powder that you mix with 8=10 oz. of water. Within 15-30 minutes it puts your body into Ketosis. Prüvit owns the worldwide rights to KETO//OS. KETO//OS has a certificate of analysis for purity, consistence and efficacy.