On the method of sharing glycolic acid, salicylic acid and nicotinamide
for skin care, glycolic acid, salicylic acid and nicotinamide are all commonly used. However, whether these three can be used for skin care is quite popular.

Glycolic acid belongs to fruit acids and the like. The molecules are tiny and can penetrate into the stratum corneum of the skin, promote the release of keratinocytes, make the skin surface smooth and delicate, and can stimulate collagen production, reduce fine lines, and improve skin radiance.

Salicylic acid, with fat-soluble properties, can penetrate oil, penetrate deep into pores, and clean up sebum that clogs pores. It has significant effect on acne, acne and other skin problems. It also has anti-inflammatory properties and soothes skin inflammation.

Niacinamide can effectively block the transfer of melanin to the surface skin, even skin tone, improve dullness, and at the same time strengthen the skin barrier, reduce water loss, and enhance the skin's ability to resist external stimuli.

As for whether the three can be shared, it needs to be considered in detail. Glycolic acid and salicylic acid are both acidic to a certain extent. When shared, they may make the skin too acidic and reduce the skin's tolerance. Sensitive skin should be especially cautious. If the skin has good tolerance, you can start with a low concentration and a low frequency to closely observe the skin's reaction. Niacinamide usually has good compatibility with both, but some people may be allergic to it. Before use, a local skin test should be done.

If you want to share, you can follow the steps below. After cleansing, use a toner to soothe the skin and adjust the pH of the skin. When the skin is slightly dry, take an appropriate amount of niacinamide products and apply them evenly, and pat them lightly until absorbed. Then, according to the skin's tolerance, take an appropriate amount of glycolic acid or salicylic acid products at intervals of a few minutes, and start with a small amount and apply them to specific parts or the whole face. After use, be sure to do a good job of moisturizing and sun protection to prevent dry skin and light damage.

In short, when using glycolic acid, salicylic acid and niacinamide, you need to carefully observe your own skin characteristics, be careful, and gradually explore the use method and frequency that suits you, in order to achieve good skin care effect and protect the health and beauty of the skin.