mnrf treatment machine - 1 views
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nubway on 26 Mar 25As we age, collagen will be gradually lost. When women are 20 years old, collagen has already begun to age and lose, and it has been declining year by year. At the age of 25, it has reached the peak of loss. At the age of 40, the collagen is less than half of that at the age of 18. The wrinkles on the faces of the elderly are caused by the loss of collagen.