How long does it take for niacinamide to be effective? Does the higher the concentration of niacinamide, the better the whitening effect?

Niacinamide is a very common whitening skin care ingredient. Many whitening skin care products contain niacinamide. Niacinamide has a very good whitening effect. Tolerance should be considered during the use of niacinamide.

How long it takes for niacinamide to take effect varies from person to person. Generally, it takes more than 2 weeks to see the effect. The whitening effect will be more obvious after one or two months. In addition to using niacinamide for whitening, you should also maintain good living habits, avoid staying up late, and do a good job of sun protection. Niacinamide can inhibit the deposition of melanin, block the production of melanin, lighten spots, and whiten the skin.

Does the higher the concentration of niacinamide, the better the whitening effect?

Niacinamide whitening requires a certain amount to achieve the whitening effect, but the higher the concentration of niacinamide, the better! Niacinamide concentration is generally below 2% with the best absorption rate, and it is also the mildest and most stable. The higher the concentration, the higher the irritation, and many people's skin can't stand it. Although niacinamide is good, we can't take too much. Our skin has limited absorption of niacinamide. The higher the amount added, the higher the chance of allergies. Niacinamide can not only whiten, but also repair damaged skin stratum corneum, improve skin resistance, and deeply lock in moisture and moisturize.

Disadvantages of Niacinamide Whitening

Although niacinamide is very good for whitening, it is unstable and irritating, and it is easy to cause skin intolerance after use. It is recommended that you start with low-concentration niacinamide products, slowly increase the concentration, and then choose high-concentration niacinamide products after tolerance is established. Before applying niacinamide products, you must first apply other skin care products to moisturize the skin and reduce irritation. If an allergic reaction occurs, stop using it immediately. Intolerance is very painful.