Antiaging Cosmetics and Epidermal Aging
Physiological aging of the skin is manifested in the thinning of the epidermis, which becomes dry, slack, and lacks elasticity, and participates in the generation of fine lines. Based on the relationship between aging and the epidermis, it can be concluded that the normal metabolism of the epidermis is damaged, lipids are reduced, proteins and metabolic enzymes are disordered, inflammation is generated, and then barrier damage occurs. Therefore, in the development of anti-aging-related cosmetics, it is advisable to consider adding functional raw materials related to skin barrier damage to better delay skin aging.
Classic “skin rejuvenating agents” such as vitamin A and lactic acid are often used to solve the problem of slowing down the metabolic rate of epidermal cells, and the effect has been affirmed by consumers. The maintenance of the skin barrier is the first issue to be considered in anti-aging cosmetics. How to balance water and oil and moisturizing is the key. Moisturizers accumulate as follows: ① emollients, lanolin, mineral oil, and petroleum increase corneal cell cohesion; ② sealants, paraffin, beans, propylene glycol, squalene, lanolin reduce scalp moisture loss (TEWL); ③ Moisturizing substances, glycerin, urea, and hyaluronic acid increase the hydration of the stratum corneum. It is also mentioned above that the breakdown of epidermal oxidation and antioxidant systems seriously affects the process of skin aging. It is necessary to use good antioxidant ingredients in anti-aging cosmetics. Commonly used antioxidants are vitamin C, vitamin E, niacinamide, alpha-lipoic acid, coenzyme Q10, green tea polyphenols, etc. In recent years, the research on the mechanism of skin aging caused by epidermal immune dysfunction has progressed rapidly. The anti-inflammatory and immune regulation of many plant extracts or Chinese herbal compound extracts have been verified, and good results have been obtained in application.
Post time: Jul-29-2022