BSN Syntha-6 Isolate Protein Powder (1.82 Kg, Chocolate Milkshake) Price starts at Rs. 8,459. The lowest price of BSN Syntha-6 Isolate Protein Powder (1.82 Kg, Chocolate Milkshake) is at Amazon. BSN Syntha-6 Isolate Protein Powder (1.82 Kg, Chocolate Milkshake) is not available in other online stores. BSN Syntha-6 Isolate Protein Powder (1.82 Kg, Chocolate Milkshake) is available in Brown colours across various online stores in India.