Abstract:BACKGROUND: Gray hair is a physiological process of aging that occurs in everyone. Premature hair graying (PHG) is the term when early hair gray at an unusual age. The causes of PHG are multifactorial, genetic, nutritional, and environmental, including oxidative stress. Free radicals caused interference with cellular responses that cause direct damage to various proteins and DNA in the long term. The body’s defense mechanisms likely antioxidant enzymes, including catalase, glutathione peroxidase (GPx), and sup… Show more
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