YOO COLLAGEN has selected vitamin C extracts from natural sources such as Acerola Cherry and Camu Camu that provide up to 2,400-3000 milligrams of vitamin C per 100 grams of fresh fruit. There are 128 research papers produced by Nitta Gelatin Inc. (Japan), the No. 1 collagen factory of Japan, the leader in collagen for over 100 years.
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