Discussion on whether nicotinamide and glycolic acid can be used together
Niacinamide and glycolic acid are both ingredients that have attracted much attention in the field of skin care. However, whether they can be used together needs to be explored in detail.

Niacinamide has multiple skin care effects. It can effectively regulate the oil secretion of the skin and make oily skin refreshing and pleasant; it can also enhance the skin barrier function, make the skin more tough and resist external adverse stimuli; and it is effective in brightening the skin tone and improving dullness, and can make the skin glow.

Glycolic acid is one of the fruit acids, and its molecules are small and can easily penetrate the surface of the skin. It can promote the metabolism of the stratum corneum, accelerate the shedding of old waste keratin, and make the surface of the skin smooth and delicate; it can also stimulate collagen production, enhance skin elasticity, and improve skin fine lines and wrinkles.

However, when the two are matched, there are certain risks. Glycolic acid is acidic, has a certain degree of irritation, and is prone to skin sensitivity. Niacinamide may be converted into niacin at a specific pH, and niacin is also irritating. If the two are not matched properly, it may exacerbate the skin's irritation, causing redness, tingling, itching and other uncomfortable symptoms.

If you want to use niacinamide with glycolic acid, you need to be cautious. The first thing to do is to conduct a skin tolerance test. Try it on a small area of skin behind the ear or inside the arm first, and observe it for 24-48 hours. If there is no discomfort, it can be gradually applied to the face. Secondly, the frequency and concentration of use should be controlled. The initial frequency of use should be low, such as 1-2 times a week, and then increase as appropriate after the skin adapts. The concentration should also be from low to high, and high-concentration products should not be used rashly. Furthermore, the order of use is also the key. It is recommended to use milder nicotinamide products first, and then use glycolic acid products after they are absorbed. And during use, be sure to do a good job of skin moisturization and sun protection to reduce the risk of skin discomfort.

Although nicotinamide and glycolic acid can be used together to bring better skin care effects, users need to have a clear understanding of their own skin conditions and follow the correct methods in order to seek advantages and avoid disadvantages and achieve the ideal skin care purpose.