Can niacinamide and acid be used together?

Many sisters are increasingly concerned about the ingredients when using skin care products, and niacinamide is also an ingredient that has attracted much attention recently. However, many people still don’t understand the use of niacinamide. Some skin care ingredients cannot be used together, so can niacinamide and acid be used together?

Can niacinamide and acid be used together?

Niacinamide and acid cannot be used together. Whether it is fruit acid, salicylic acid, or pure VC, it is not recommended to use them together with niacinamide at the same time. Because the use of acid will make the skin surface environment in a low pH state, and under low pH conditions, niacinamide will turn more into niacin. Niacin is much more irritating to the skin than niacinamide, which affects the usage experience.

It is best to use niacinamide and acid separately

If you have opened a bottle of niacinamide essence and a certain fruit acid or salicylic acid essence and want to use them together, you should switch the times of use, for example, use 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.

Niacinamide can be used with most active ingredients

The irritation of niacinamide is not as strong as that of retinol, fruit acid, and salicylic acid. In addition, niacinamide is more flexible in combination and can be used with most effective ingredients without worrying too much about increased irritation.

In fact, because niacinamide moisturizes and helps repair the skin barrier, sometimes using niacinamide together with irritating ingredients can help reduce the irritation of the irritating ingredients.

Can niacinamide be used during the day?

Yes, and it is suitable for daytime use.

There are only a few ingredients that are not suitable for daytime use, and niacinamide is not one of them. Of course, if the concentration you use is too high (such as 10%), I don’t recommend you to use it during the day. Although niacinamide itself is not afraid of sunlight, too high a concentration may reduce the skin’s protective ability, so it is still not suitable for daytime use.

What is the best concentration of niacinamide?

Generally speaking, more than 2% will help moisturize and repair the skin barrier, and more than 3% will be better for whitening.

At the same time, niacinamide above 5% is generally considered to begin to have irritation that requires attention, so for most people, 5% can be considered a relatively mild and safe upper limit of concentration. If it is higher, you have to be extra careful about irritation.

Summary of Niacinamide Use

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.