This has been my premium collagen of choice and I love the bigger bag. I stopped it for a bit and boy oh boy can one feel the difference. This is the only product of its kind, helps me to sleep better, huge improvement in hair, nails and skin. I have fibromyalgia my joints love it. About to get another big bag. Love it the small bag, the sachets but when you need this glow long term highly advise the 500g bag. Tasteless and can be enjoyed in any beverage. My skin glows and my body is in a state ...