Many other collagen products include a list of ‘flavourants’ which are chemicals, preservatives and other things that don’t have to be disclosed which bring the price down for the manufacturer. The MOTHERKIND ‘GLOW’ range is 96.7% pure collagen. Factually, this would be 100% pure however we cannot factor out oxygen and hydrogen at 3.3%. In other words, Glow From Within is the purest form of collagen powder.