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collagen for hair price

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  • Collagen is the main component of connective tissue of animals

    2021-08-25

    Collagen is a biopolymer, the main component of connective tissue of animals, and the most abundant and widely distributed functional protein in mammals, accounting for 25% to 30% of the total protein, and even more than 80% in some organisms. Animal tissues derived from livestock and poultry are t Read More