On the combination of nicotinamide and glycolic acid
Mortal skin care, often trapped in the combination of ingredients, nicotinamide and glycolic acid have attracted much attention, but whether they can be compatible, there are different opinions, and it needs to be investigated in detail.

Niacinamide is also a good skin care agent. It can fix the skin barrier, if the city wall is strong, it can resist external disturbances; it can inhibit the transfer of melanin, make the skin even, bright and shiny; and adjust the skin oil, make it secreted in an orderly manner, reach the state of water, oil and balance. Many creams and essences are based on this to help the skin be healthy.

Glycolic acid belongs to the fruit acid family. Its molecules are small, can quickly penetrate the surface of the skin, loosen keratin adhesions, promote keratin renewal, and make the skin delicate and smooth; it can hydrate the skin, increase its hydration, moisturize the fields like spring rain, and revive vitality; it also stimulates collagen growth, reduces wrinkles and resists aging, and leaves the shadow of youth. It often exists in skin rejuvenation products, which is the key to rejuvenation.

The two are applied alone, each has its own strengths, and then used together, with advantages and disadvantages. The advantages are synergistic. Glycolic acid opens the skin channel, helps nicotinamide to enter the skin more easily, strengthens the power of brightening the skin, and whitens more obviously; and nicotinamide solid barrier, retards glycolic acid stimulation, makes the skin protected, and the sensitivity is slightly reduced.

Those who are harmful also have risks. Glycolic acid lowers the pH value of the skin, and niacinamide is easy to turn to niacin in the acid environment. Niacin irritates strongly, causing the skin to be red, swollen, itchy, and burning, especially sensitive skin. If the concentration of the two is improper, the skin will be overwhelmed, the barrier will be damaged, and the resistance will be lost, and the disease will easily invade.

Therefore, when the two are used together, the quality of the skin needs to be reviewed. For sensitive skin, it is like walking on thin ice. Try it locally first to observe the skin's reaction. There is no discomfort before it can be used gradually, and the concentration and frequency should be controlled. For healthy skin, skin tolerance should also be observed. Starting from low concentration, it will gradually increase

In short, the combination of nicotinamide and glycolic acid is like a double-edged sword. If you use it well, you will beautify your skin, and if you are not careful, you will hurt your skin. The way of skin care is to be fine, to be a confidant, and to use it prudently to get the beauty of your skin.