Retinol, also known as Vitamin A, is a representative cosmetic ingredient good for diminishing wrinkles. According to the article of Harvard Health Publishing, it was used as an acne treatment in the 1970s, but researchers later discovered that it also fades actinic keratosis spots, evens pigmentation, and speeds the turnover of superficial skin cells.
Retinol increases collagen, leading to reduce wrinkles and improving skin elasticity. Besides, this substance stimulates the metabolism, working to improve skin structure and complexion and to prevent skin dullness and roughness while reducing dark spots and blemishes. However, when retinol meets sunlight, it can cause skin sensitivity and irritation, you need to apply the products formulated with Retinol at night before sleeping and to wear sunblock during the day.
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