Kojic acid is a chemical that’s produced from different species of fungi and found as a by-product in fermented rice and soy sauce. It’s used topically to reduce the appearance of dark spots, brighten skin and promote healthy aging. Its main function in cosmetology is to prevent the formation of tyrosine, an amino acids that’s required to produce melanin, a pigment that affects skin color. You can find the metabolite as an ingredient in skin creams, lotions and soaps. Research indicatesthat kojic acid and its derivatives have antioxidant, anti-proliferative, anti-inflammatory, UV-protector and skin-lightening effects on the skin. See full list on Kojic acid is used in cosmetic products in concentrations between 1 percent to 4 percent, but starting with concentrations at or below 2 percent is recommended, especially for products that are left on the skin and not washed away. You may find it on the ingredient list of several typesuding: 1. Soaps and cleansers 2. Creams 3. Serums 4. Powders 5. Lotions 6. Face and body oils 7. Face masks Generally, kojic acid has a poor absorption rate, so it sits on the surface of the skin. There are some products containing the acid that are left on the skin, such as serums and lotions, and some that are washed away, like face cleansers. See full list on It is possible to experience irritation from kojic acid, although it’s generally well-tolerated. If you experience itching, burning or irritation after using a product containing the acid, discontinue use immediately. If you have sensitive skin, start with a product that has a lower concentration of the acid, such as 1 percent. Be careful with kojic acid powders that allow you to add liquid and create your own formula. To keep track of concentrations, you may be better off starting with a trusted product with a specific concentration listed on the label. Although one animal study showed that higher concentrations of kojic acid may promote tumor growth, researchers suggestthat the acid is slowly absorbed into blood circulation through human skin and would likely not reach the levels necessary for this kind of adverse effect to take place. See full list on Products containing kojic acid are generally used daily, although it does depend on ing ingredients. If you’re new to using the acid, start with applying it a few times per week and at lower concentrations, around 2 percent or less. Be sure to wear sunscreenwhen you’re using a product containing the whitening ingredient, as extended use can make you more susceptible to the sun. Some serums and other productsude kojic acid, hydroquinone and glycolic acid. You may also find serums or face oils with vitamin C for a boost of anti-aging antioxidants. Be sure to purchase from a reputable brand, and start with a small area of skin to rule out any adverse reactions. See full list on
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