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A number of clinical studies established that GHK-CU stimulates the synthesis of collagen, the production of selected glycosaminoglycans (like hyaluronic acid), and modulates matrix metalloproteinases (MMPs)
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Fernndez-Len, M.F
Early research suggests that taking L-carnitine in the morning and evening for 8 weeks reduces dozing off during the day in people with narcolepsy
