"On whether niacinamide and glycolic acid can be shared"

Niacinamide and glycolic acid are both commonly used ingredients in skin care. However, in the way of skin care, the combination of ingredients is quite profound. Whether the two can be shared needs to be explored in detail.

Niacinamide has various effects. It can effectively improve the dullness of the skin, improve the gloss of the skin, and make the skin more uniform. And it also has a significant effect on strengthening the skin barrier, which can help the skin resist external stimuli. In addition, niacinamide has the function of regulating oil secretion and can make oily skin tend to refresh.

Glycolic acid is a fruit acid and has unique advantages. It can gently exfoliate the skin, accelerate the metabolism of the stratum corneum, make the dead skin on the surface of the skin fall off, and make the skin smoother and more delicate. At the same time, it can promote the skin's absorption of nutrients in subsequent skin care products.

As for whether the two can be shared, many studies have shown that in most cases, nicotinamide and glycolic acid can be used together. However, it should be noted that some people with sensitive skin may cause skin discomfort due to the synergistic effect of the two, such as tingling, redness, etc. Therefore, when used together for the first time, it should be tried before a small area of skin. If the skin has no adverse reactions, the scope of use can be expanded.

The order of use is also exquisite. Usually, milder nicotinamide products are used first, and then glycolic acid products are used after the skin absorbs them. In this way, both the effects of the two can be fully exerted, and the risk of skin discomfort can be reduced. And during use, be sure to do a good job of skin moisturizing and sun protection to prevent dry and damaged skin.

In short, nicotinamide and glycolic acid can bring more ideal skin care results if they are properly matched and used reasonably. However, individual skin conditions vary, and careful consideration is required before use to achieve the purpose of safe and effective skin care.