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Niacinamide for Skin Health: What Percentage is Effective for the Skin?

Published : May 23, 2024 4 mins read Updated On : May 28, 2024

Healthy and glowing skin is what every woman desire. One of the best ingredients that can help women achieve glowing clear skin without any dark spots is niacinamide. Imagine niacinamide as a skillful fixer of your dull and dark skin. Niacinamide benefits the skin by enhancing barrier function, reducing inflammation, minimizing pore size, regulating oil production, improving hydration, and diminishing hyperpigmentation and fine lines, resulting in a smoother, brighter, and more even complexion.

Niacinamide for Skin Health: What Percentage is Effective for the Skin?

There are multiple niacinamide skincare products available in the market with various concentrations of niacinamide. It is important to choose the right concentration of niacinamide to get the maximum benefits of this amazing ingredient. In this blog we will guide you to understand what the best concentration of niacinamide is and how to choose the best niacinamide serum for your skin.

What is Niacinamide?

Niacinamide, a form of vitamin B3, is a water-soluble vitamin essential for skin health. It is best known for its soothing properties and reducing dark spots. Many people confuse niacinamide with other vitamin B niacin however they are not the same.

Your body can produce niacinamide from niacin supplements if there is an excess of niacin. Additionally, tryptophan in the body can be converted into niacinamide.

Benefits of Niacinamide for the Skin

Reduces Dark Spots: Niacinamide helps inhibit the transfer of melanosomes to skin cells, which can reduce hyperpigmentation and dark spots. Studies show that topical application of niacinamide can significantly improve skin tone and fade dark spots over time (1).

Soothes Redness and Irritation: Niacinamide has anti-inflammatory properties that can help reduce redness and irritation, making it beneficial for conditions like acne, rosacea, and other inflammatory skin issues. It strengthens the skin barrier, which can also help soothe and protect sensitive skin (2).

Maintains a Balanced Complexion: Niacinamide helps regulate sebum production, which can reduce excess oiliness and prevent dry skin, leading to a more balanced complexion (3).

Boosts Hydration and Minimizes Fine Lines: Niacinamide enhances the skin's barrier function by increasing ceramide and free fatty acid levels in the skin. This improved barrier function reduces water loss and boosts hydration. Increased hydration can help minimize the appearance of fine lines and wrinkles (4).

Reduces Large Pores: By regulating sebum production and improving skin elasticity, niacinamide can reduce the appearance of large pores. It helps smooth the skin's texture, making pores less noticeable (5).

Brightens the Skin: Niacinamide inhibits the transfer of melanin within the skin, which helps reduce dark spots and hyperpigmentation, leading to a brighter and more even skin tone (6).

Niacinamide Concentration: Which is Best?

It is important to choose the right concentration of niacinamide as more is always not good. Many scientific studies have shown that a 2%-5% concentration of niacinamide in topical serums is ideal. However, the best concentration of niacinamide according to many experts is 2%. There are various scientific studies backing this claim. Let’s understand with the help of these studies

Sebum regulation using 2% niacinamide

A study was conducted to measure the Sebum Excretion Rate (SER) in 100 participants. Participants were divided into two groups of 50. The first group was treated with 2% niacinamide serum while the second group was given the placebo. The SER was measured in intervals of 2 weeks and 4 weeks.

The results showed that there was no difference in the control group, people who used 2% niacinamide showed a significant reduction in SER rate after 4 weeks (7).

Treating fine lines with 2% niacinamide

Research focused on treating fine lines found that a 2% concentration was highly effective in using fine lines and hyperpigmentation. This concentration has been linked to a significant reduction in hyperpigmentation and an improvement in the appearance of fine lines and wrinkles, making it an excellent choice for addressing signs of sun damage and aging (8).

Fading Dark Spots with 2% niacinamide

Another study found that 2% niacinamide concentration was effective in reducing facial hyperpigmentation. Using niacinamide in your skincare routine alongside sunscreen has the potential to address pigmentation concerns and promote a more even skin tone (9).

How Long Does Niacinamide Serum Take to Work?

Niacinamide serum typically begins to show visible results within 4 to 12 weeks of consistent use. Improvements in skin texture, hydration, and reduction of inflammation can often be seen in the first few weeks. For more significant changes like reduced hyperpigmentation, minimized fine lines, and smaller pores, it may take 8 to 12 weeks of regular application. Individual results can vary based on factors such as skin type, the concentration of niacinamide, and overall skincare routine.


Niacinamide is a key ingredient in many topical skincare serums. However, choosing the right concentration of niacinamide is crucial for your skin. Multiple research has demonstrated that 2% niacinamide is the ideal concentration for the skin. 2% niacinamide was found to be the best for all types of skin. So next time you buy a niacinamide serum or other beauty serum with niacinamide make sure you choose the one with 2% niacinamide.


How much niacinamide is too much?

Using more than 10% niacinamide in skincare products can be too much for some individuals, potentially causing irritation, redness, or dryness. Start with lower concentrations to gauge tolerance.

What is the percentage of niacinamide for acne?

A 2% to 5% concentration of niacinamide is commonly recommended for treating acne. This range effectively reduces inflammation, regulates oil production, and minimizes acne without causing significant irritation.

What are the different types of niacinamide supplements?

Niacinamide supplements come in various forms, including oral tablets, capsules, topical creams, serums, and powders. These supplements can address skin concerns, boost overall health, and support cellular energy production.

Soumil Vartak
Health and Fitness enthusiast

Soumil is really passionate about health and fitness. He provides great insight on various trends about health and fitness. By writing about these topics he try to provide key insight on diet and e... Read More


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