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  • Today, we are going to talk about ways to get rid of dead skin. In particular, we're going to look in detail at chemical exfoliation, which is all about chemical acids. We will talk about how they should be used, which skin types they are suitable for.

    Let's have a basic understanding of what exfoliation is. The top layer of the skin has a protective barrier that we call the Stratum Corneum. This layer is made up of dead cells and is renewed approximately every two weeks. However, over time, this renewal process can slow down due to various factors, especially after the age of 25, which are associated with aging, hormones, diet and weather changes.

    If exfoliation does not take place well, dead skin cells can clog pores and cause acne formation, as well as dryness, fine wrinkles and lifeless skin. Regular exfoliation is very important to prevent this.

    It is also important to understand the difference between physical and chemical exfoliation. Physical exfoliation involves products such as granular peels or konjac sponges, while chemical exfoliation involves using chemical acids. Chemical acids specifically include hydroxy acids such as AHA, BHA and PHA.

    Physical exfoliation products usually only work on the top layer of the skin and cannot act as deeply as chemical acids. However, the rate of damage to your skin when using physical exfoliation products may vary depending on the product used. If you have skin with a low tolerance to acids, it is recommended to opt for gentle products.

    Chemical acids include three types of hydroxy acids: AHA, BHA and PHA. Alpha hydroxy acids (AHAs) include Glycolic Acid, Lactic Acid, Malic Acid and Mandelic Acid. For AHAs to be effective, they must have a concentration between 4% and 10% and a pH of less than 4. Mandelic Acid is recommended for beginners due to its larger molecular size.

    The most common of the beta hydroxy acids (BHA) is Salicylic Acid. This acid is especially recommended for oily and acne-prone skin because it can penetrate deep into the pores and has cleansing properties.

    Poly hydroxy acids (PHAs) are more recently used in skin care. Different acids such as Lactobionic Acid and Gluconolactone are in this category. They may be less irritating because their molecular size is larger, but not enough research has been done on them yet.

    Azelaic Acid is an acid especially recommended for acneic and rosacea skin. It also has AHA and BHA properties and has skin cancer prevention properties.

    Retinoids, forms of vitamin A, Retinoid and Retinols are known for their ability to accelerate the regeneration of skin cells, antioxidant effects and support collagen synthesis. However, it is important to consult a dermatologist before use.

    Fruit enzymes include enzymes such as Bromelain and Papain, especially from sources such as pineapple and papaya. These enzymes usually come in mask form and provide a gentler exfoliation.

    Vitamin C, in the form of L-Ascorbic Acid, is the most widely used anti-aging ingredient. It protects the skin with antioxidants and is effective in reducing blemishes.

    One of the important points to be considered when using acids is not to neglect sun protection. If chemical acid products are used, it is important to use sunscreen every day. It is also important to gradually accustom the skin to the use of acids and test each new product on a small area first.

    To provide a guide on which acid is suitable for which skin type, we recommend Azelaic Acid, Salicylic Acid, Glycolic Acid, Lactic Acid and Mandelic Acid for acneic skin. For dry and mature skin, Glycolic Acid, Lactic Acid, Ascorbic Acid and Ferulic Acid may be suitable. Those who want to reduce blemishes can consider Vitamin C, Azelaic Acid, Glycolic Acid, Lactic Acid, L-Ascorbic Acid and Ferulic Acid. For sensitive skin, it may be advisable to start with physical peels and move on to gentler products such as fruit enzymes.