American collagen which brand is good? First, NeoCell pure collagen powder is very good, the brand belongs to the pharmaceutical level, and is still 100 percent small molecule hydrolyzed collagen, more conducive to absorption, which does not contain any fat and sucrose and yeast and wheat and so on, the purity is very high, but we need to pay attention to this brand of collagen powder is not suitable for children to take. Second, Youtheory Collagen Collagen, the brand of collagen have gone through a professional technical processing, to ensure that the collagen molecules are more fine, absorption is better, after taking the skin will become more translucent and glossy, while the skin is more elastic, with the effect of slowing down the aging process. U.S. collagen which brand is good? The above is for you to introduce, the better two brands, these two brands of collagen are very easy to absorb, and the effect of supplementation is also very obvious. People can choose these two brands if they are buying.