Finished traits: 1. Red peony: It is a round slice or oblique slice, 0.5 to 3 cm in diameter and 0.3 to 0.5 cm in thickness. The surface is white or pink, with a radial texture at the center, narrow skin, and cracks. Grayish brown around. Hard and brittle. Slightly bitter taste. According to the method described in [Content Determination] above, the content of peoniflorin (C23H28O11) should not be less than 1.5%. 2. Fried red clams: deeper color, occasional focal spot. 3. Red wine: slightly yellow, slightly alcoholic. Collagen is the most abundant protein in mammals, accounting for 25% to 30% of the total protein. It is widely present in all tissues from the body surface of lower vertebrates to mammalian bodies. Collagen monomers are long cylindrical proteins with a length of about 280 nm and a diameter of 1.4–1.5 nm. It consists of 3 polypeptide chains that are supercoiled around each other. Collagen,Collagen Peptides,Collagen costco,Collagen Peptide Products YT(Xi'an) Biochem Co., Ltd. , https://www.ytnutra.com