What should not be used with niacinamide stock solution? Be careful of rotting your face when using niacinamide stock solution with acid.

Niacinamide is a widely used and comprehensive skin care ingredient that has certain effects on whitening, repairing and anti-aging. But what should not be used with niacinamide stock solution?

What should not be used with niacinamide stock solution?

Niacinamide stock solution cannot be mixed with acids, such as salicylic acid, fruit acid, vitamin C, etc. Because niacinamide itself releases a large amount of niacin. If it is mixed with acidic substances, the large amount of acidic substances will change the pH value of the human body, irritate the skin, and eventually cause facial ulcers.

It is best to use niacinamide and acid separately

If both the niacinamide essence and a certain fruit acid or salicylic acid essence have been opened, and you really want to use them together, it is best to switch the times of use, such as using the acid essence at night and the niacinamide essence in the morning.

Theoretically, it is enough to leave a certain period of time (such as 2 hours) between the use of niacinamide and acid, and there is no need to leave a long interval of 12 hours. However, many people find it troublesome to use it in this way. Frequent use of acid can easily cause discomfort to the skin. It is only necessary to use acid 1-2 times a week, and be gentle on the skin.

Tips for using niacinamide

Niacinamide is a widely used and comprehensive skin care ingredient. It has certain effects on whitening, repairing, and anti-aging. Although it is not the strongest in each individual item, it is still pretty good. Overall, it is still highly recommended. At the same time, niacinamide is relatively mild and easy to use with other products. It does not have too many requirements for usage time, and is especially suitable for people who are too lazy to bother. However, when using it, you should try to avoid using it with acid, and do not rashly try particularly high concentrations (>5%). Gradual and gentleness first is still an important principle of skin care.