People use glycolic acid for acne, aging skin, dark skin patches on the face, and acne scars. It comes from sugarcane. Glycolic acid is better for oily or acne-prone skin. Both Lactic Acid and Glycolic Acid exfoliate the skin. You can consider using a product that contains both lactic and glycolic acid. Lactic acid - SuperstarIt’s the second most researched AHA after glycolic acid. Acts as a gentle exfoliant, meaning it helps remove the top layer of dead skin cells, improving skin texture by softening and smoothing it, and is often used to address concerns like fine lines, dullness, and uneven skin tone; it's considered a mild AHA (alpha-hydroxy acid) and can even help hydrate the skin due to its natural moisturizing properties. *** Lactic acid is better for sensitive skin, exfoliates gently and penetrates more slowly than glycolic acid. Citric acid is an alpha hydroxy acid (AHA) that's used in skincare products to exfoliate, brighten, and improve skin tone. It's also used to adjust the skin's pH.  Benefits: Exfoliation: Removes dead skin cells, unclogs pores, and improves skin texture  Brightening: Fades dark spots, hyperpigmentation, and sun damage  Acne treatment: Unclogs pores and reduces breakouts by removing excess oil, dirt, and debris  Anti-aging: Increases collagen synthesis and improves the quality of elastic fibers  Skin tone: Promotes smoother, brighter, and more even-toned skin  pH balance: Helps maintain the skin's natural pH balance of 4.5–5.5  Malic acid is an alpha hydroxy acid (AHA) that is used in skincare products to exfoliate and brighten skin. It is found in many fruits, including apples, pears, and cherries.  Benefits Exfoliation: Malic acid removes dead skin cells, revealing a smoother, brighter complexion  Hydration: Malic acid can improve the skin's ability to hold moisture  Anti-aging: Malic acid helps promote collagen production, which can reduce the appearance of wrinkles  Hyperpigmentation: Malic acid can reduce melanin production, which can make skin more even  Acne: Malic acid can help balance oil production and reduce the appearance of breakouts 
 Kojic acid Kojic acid is made from various types of fungi and it’s also a byproduct when certain foods ferment, such as soy sauce and rice water. It is found in different types of cosmetic products, including powders, cleansers, soaps, and serums. The primary use of kojic acid is to lighten age spots, scars, reduces hyperpigmentation. It is effective in brightening and lightening skin. It inhibits the enzyme tyrosinase, reducing melanin production and improving skin tone. Regular use can lead to a more even and radiant complexion. Kojic acid is a skincare ingredient that brightens skin and acts as an antioxidant by neutralizing free radicals that cause aging. Use products containing kojic acid correctly and avoid overexposure to sunlight. It’s available in different formulations for targeted treatment or overall brightening.  Azelaic acid can improve skin texture, tone, and appearance by unclogging pores, reducing inflammation, and killing acne-causing bacteria. It can effectively treat acne, hyperpigmentation, and rosacea, making it an excellent addition to any skincare routine. Azelaic acid is a popular skincare ingredient derived from barley, wheat, and rye grains. Hyperpigmentation and Dark Spot Reduction: Azelaic acid reduces dark spots and hyperpigmentation by limiting melanin production, resulting in a more even skin tone. Rosacea Relief: Azelaic acid can help those with rosacea by reducing redness and calming skin sensitivity through constraining blood vessels and soothing the skin. Gentle Exfoliation: Azelaic acid gently exfoliates, promoting cell turnover for smoother skin. It’s well-tolerated by sensitive skin, making it an excellent choice for those prone to irritation. Antioxidant and Anti-inflammatory Properties: Azelaic acid is a helpful skin protector that shields against pollution and UV damage. Additionally, it is effective in reducing inflammation and redness. Azelaic acid is a powerful skincare ingredient that can improve acne, hyperpigmentation, and rosacea. Use it for a clearer complexion. Hyaluronic acid Hyaluronic acid aids in boosting hydration. It is a slippery substance that your body naturally produces. It is especially found in the eyes, joints, and skin. It provides so many benefits to your body, including helping the skin stretch and flex, and reducing skin wrinkles and lines. Hyaluronic acid, also known as hyaluronan has a gel-like consistency and is naturally occurring in the body. Half of the body’s reserve for hyaluronic acid is found in the skin. Made up of long chains of carbohydrate molecules, which combine with water to help the skin retain moisture, and this helps keep the skin hydrated. Hyaluronic acid is similar to a sponge as it can attract and retain over a thousand times more than its weight in water.  The compound can also increase the speed of wound healing. As hyaluronic acid is already present in the skin, the concentration increases when used in a skincare routine. The acid also regulates inflammation levels within the body, specifically by signalling damaged areas of the body to build more blood vessels when needed. If hyaluronic acid is applied directly to the wound, studies have shown that it can reduce the size and pain faster than some treatments. The acid also has some antibacterial properties, it decreases the risk of the wound getting infected when applied directly.  Poly-glutamic acid Polyglutamic acid can be used to hydrate skin, help maintain skin barrier. Skincare that contains ceramides helps to replenish the skin barrier. This will help to ensure that you prevent skin dryness and infection. Ferulic acid is a plant-derived antioxidant that neutralizes free radicals, improves aging signs, and enhances other antioxidants like vitamin C and E.