Oxidative activity occurs during the metabolism of human tissues and is a natural and inevitable part of the aging process of the skin. The skin is a crucial part of the body and serves as a defense against external environmental elements such as exposure to sunlight, extreme heat or cold, dust, and bacterial infection. These items play a well-known part in many skin problems, while occasionally being dismissed as simple cosmetics. There is a plethora of anticipated skin products on the market, but their true scientific function is yet unknown. This study looks at how the stratum corneum's molecular and macroscopic characteristics interact and change with skin wetness. Although there is little information written about them and even less is understood about them, moisturizers are a crucial component of a dermatologist's toolkit. The skin's hydration is a crucial factor that affects its mechanical and physical characteristics. Ultraviolet radiation from the sun can kill skin cells by directly absorbing DNA damage. The primary contributor to skin cancer is sun exposure. The biological process of skin aging is complicated and impacted by both external and endogenous causes. Systemic and constitutive (genetic) variables influence skin aging and its phenotypic manifestation. This is a byproduct of several intricate biological processes that are affected by diseases both local and systemic as well as constitutive and environmental variables. With aging comes a steady loss of physiological integrity, capacity to handle stress from the inside out, and function. A popular component thought to be an antioxidant is hydrolyzed collagen. Due to their benefits for health, nutrition, and therapy, natural antioxidants are increasingly being used in place of synthetic antioxidant components. In people's diets, their use has considerably expanded in recent years. Antioxidants are chemicals that slow down or prevent other molecules from oxidizing.

The stratum corneum, which acts as the organism's contact with its environment, is the principal function of the epidermis of land vertebrates.

However, there are not many clinical trials that back up these assertions. Food supplements may be consumed through diet and have been shown to modify skin functions, making them helpful in the management of skin aging.

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