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Definition: What are alpha-hydroxy acids and how do they help in exfoliating the skin?

Alpha-hydroxy acids (AHAs) are a group of naturally occurring acids, commonly derived from fruits, milk, and sugar cane. They are widely used in skincare products for their exfoliating properties. AHAs work by gently dissolving the bonds between dead skin cells on the surface of the skin, allowing them to be easily sloughed off, revealing smoother and brighter skin underneath.

AHAs are water-soluble and can penetrate the upper layers of the skin, promoting cell turnover and stimulating the production of collagen and elastin. This helps to improve the overall texture and tone of the skin, reduce the appearance of fine lines and wrinkles, and fade hyperpigmentation and acne scars.

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The most commonly used AHAs in skincare products include glycolic acid, lactic acid, citric acid, and malic acid. Each AHA has a slightly different molecular size and penetration depth, making them suitable for different skin types and concerns.

When using products containing AHAs, it is important to follow the instructions and start with a lower concentration to avoid potential skin irritation or sensitivity. It is also crucial to use sunscreen during the day as AHAs can increase the skin’s sensitivity to the sun.

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Overall, alpha-hydroxy acids are effective exfoliants that can help improve the appearance and texture of the skin, making them a popular ingredient in skincare routines for achieving a smoother and more youthful complexion.

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