Which brand of collagen is good?
Collagen which brand is good? Collagen top ten brands list is as follows: First, KASONGS / Kargo collagen second, Lumi collagen third, Fancl / Fanco collagen fourth, mmV collagen fifth, Doppelherz / double heart collagen sixth, Tangchenbeijian collagen seventh, Yan Ruyu collagen eighth, vikki collagen ninth, Zimetang collagen Powder tenth, Swisse / Sweets collagen (does not contain collagen)