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Collagen is basically the structure that holds the entire body together. As you know, it is found in the skin, but also in the bones, muscles, tendons, and connective tissues such as joint cartilage. Some forms of collagen are even used to create protective coverings for the kidneys and other delicate organs.
Collagen is very important for the regrowth and replacement of skin cells, because it forms the network within the dermis to which these new cells can attach. When this network starts to sag due to declining collagen production, lines and wrinkles are the obvious and direct result. Collagen production naturally declines with age, reducing the structural integrity of the skin and leading to sagging skin, the formation of lines and wrinkles and the weakening of cartilage in joints. While young, the body consistently produces collagen, but collagen synthesis begins to decline around the age of 40, with a dramatic reduction in synthesis in women after menopause. By the age of 60 there is typically a considerable decline in collagen production. So it is important to supply collagen supplement in our daily life.