A topic is most popular with lady---beauty

There is say “time and tide wait for no man”.How we can keep younger as time goes by.We are focus on in the line of beauty for many years,and now we are willing to share some professional IN with women which can help them youth forever.

Collagen-biopolymer, the main component in animal connective tissue
October 22,2019
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Collagen is a biopolymer, the main component in animal connective tissue.Collagen is the most abundant and widely distributed functional protein in mammals, accounting for 25% to 30% of the total protein, and some organisms even as high as 80% or more.
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