How long does it take for niacinamide to take effect? ​​Can niacinamide be applied directly to the face?

Niacinamide is a skin care ingredient that combines multiple functions such as whitening, moisturizing, and shrinking pores. It can meet most skin care needs, especially the whitening effect of niacinamide is the most obvious. How long does it take for niacinamide whitening to take effect?

How long does it take for niacinamide to take effect?

The duration varies from person to person, but generally it takes one to two months for noticeable results to appear.

Niacinamide does have a whitening effect. Niacinamide can downregulate the transport of melanosomes from melanocytes to keratinocytes without inhibiting tyrosinase activity or cell proliferation, thereby affecting skin pigmentation. It can also interfere with the cell signaling pathway between keratinocytes and melanocytes and reduce melanin production. So theoretically, it can reduce the production of melanin and thus play a whitening role. However, whether the effect is obvious depends on whether the ingredients are sufficient, and generally it takes one or two months for the whitening effect to appear.

Can niacinamide be applied directly to the face?

Do not apply it directly to your face, because the concentration of niacinamide is too high and applying it directly to your face may cause skin effects such as acne and stinging.

When choosing a niacinamide product, start with a low concentration, and then gradually choose a high-concentration niacinamide product after skin tolerance is established.

Another little trick to reduce the irritation of niacinamide is to apply a thin layer of primer before using high-concentration niacinamide products; this can first moisturize the skin, adjust the skin to the best condition, reduce the speed of niacinamide penetrating into the skin, reduce irritation, and also achieve the purpose of whitening.

Symptoms of niacinamide intolerance

When talking about niacinamide, we have to mention an ingredient called niacin. Nicotinamide is most stable in a solution with a pH of 6. In a solution with a pH higher or lower than 6, it will hydrolyze to form niacin. It is this ingredient that makes many people intolerant to niacinamide and causes intolerance reactions such as redness, swelling, heat and pain when using niacinamide products. Symptoms of allergies include redness, itching, and tingling of the skin. These symptoms are more likely to occur in cold, dry climates.