Why does the niacinamide stock solution turn yellow? Can the niacinamide stock solution still be used after it turns yellow?

Many whitening essences contain niacinamide. The higher the niacinamide content, the faster the whitening effect. So how long can niacinamide be stored? Will niacinamide turn yellow or change color? Let's take a look with these curiosity.

Relatively speaking, niacinamide is a relatively stable water-soluble vitamin. Many sisters will find that niacinamide will turn yellow and change color immediately after not using it for a period of time. What is going on?

Why does niacinamide solution turn yellow?

Caused by oxidation. Generally, essence will oxidize after being left for a long time.

Pure niacinamide will not turn yellow if it is stored for a long time.

The reason for the yellowing is that it is mixed with other ingredients in the product and oxidized to produce yellowing.

Can niacinamide still be used after it turns yellow?

It can still be used, but the efficacy may be affected to a certain extent. It is recommended to use it up as soon as possible.

What is the reason for the skin to turn yellow after stopping the use of niacinamide stock solution?

The skin is naturally yellowish, and it will appear yellow only after stopping use.

Niacinamide has antioxidant and anti-glycation effects. Using niacinamide to help whiten the skin can help the skin with antioxidant and anti-glycation effects.

Once you stop using niacinamide, your skin will return to its original rhythm, and without any other care steps, it will naturally return to its original skin condition.

What is Niacinamide

Like all active ingredients in skin care products that really work, niacinamide has a powerful effect on skin cells, producing a coenzyme through biochemical reactions inside the skin. The so-called coenzyme, literally means a substance that "helps enzymes to work."

Enzymes are special proteins in skin cells. Without enzymes, chemical reactions within cells cannot proceed and the cells will die. However, "enzymes" cannot carry out their work by themselves and need help from others. Among these helpers are "coenzymes"!