10% Niacinamide Serum: What It Does, How to Use It and What to Combine It With
Niacinamide is everywhere in skincare, and 10% niacinamide serums are among the most popular products of all. But is 10% too much? How does it fit with vitamin C or retinol? And who is it really for? This guide answers the most common questions about niacinamide serums.
What Is Niacinamide?
Niacinamide is a form of vitamin B3. In skincare it is known as one of the most versatile and well-tolerated active ingredients. It suits oily, combination and dry skin, and many people with sensitive skin use it too.
What Does Niacinamide Do in Skincare?
In cosmetics, niacinamide is used to:
- Minimize the look of pores
- Help balance shine on oily and combination skin
- Support a more even-looking skin tone, including the look of post-blemish marks
- Support the skin's natural barrier
Its big advantage: it does this gently, without the irritation some people get from retinol or exfoliating acids.
Is 10% Niacinamide Too Strong?
Serums commonly contain between 2% and 10% niacinamide, and 10% is a popular concentration. Most people tolerate it well.
If your skin is very sensitive:
- Patch-test on the jawline first.
- Start with once a day, in the evening.
- Increase to twice a day once your skin is used to it.
A short tingle can happen with any new active. Real redness, itching or burning means stop and give your skin a break.
How to Use a Niacinamide Serum
- Cleanse your face.
- Optional: apply toner.
- Apply 2 to 3 drops of niacinamide serum and gently pat it in.
- Follow with moisturizer.
- In the morning, finish with sunscreen.
The general rule: thinnest to thickest. Water-based serums go on before creams and oils.
Can You Combine Niacinamide with Other Actives?
- Hyaluronic acid: yes, a classic pairing. Hydration plus pores and tone.
- Vitamin C: yes. You can layer them, or use vitamin C in the morning and niacinamide in the evening if you prefer.
- Retinol: yes. Niacinamide is popular alongside retinol because it is gentle and supports the skin barrier.
- AHAs and BHAs: possible, but introduce one active at a time.
How Long Until You Notice Something?
Skincare takes patience. Many people notice less shine and smoother-feeling skin within a few weeks of consistent twice-daily use. Changes in the look of tone usually take longer. Individual results vary.
Is Niacinamide Good for Men?
Yes. Men often have oilier skin and larger-looking pores, which are exactly what niacinamide is popular for. A light, fragrance-free serum fits easily into even the simplest routine.
Checklist Before You Buy
- Is the niacinamide percentage stated?
- Is it fragrance-free, especially for sensitive skin?
- Does it include hydrating ingredients like hyaluronic acid or glycerin?
- Is it paraben-free, vegan and cruelty-free, if that matters to you?
- Is it made in a GMP-certified facility?
Our Niacinamide Serum
SUPPLI-X 10% Niacinamide Serum combines 10% niacinamide with sodium hyaluronate, a lactobacillus ferment filtrate, chamomile and allantoin in a lightweight base. Fragrance-free, paraben-free, sulfate-free, vegan and cruelty-free. 30 ml, made in the USA.
Prefer niacinamide in a cream? Read our Niacinamide Moisturizer Guide.
FAQ
Is 10% niacinamide too strong?
Most people tolerate 10% well. If your skin is very sensitive, patch-test first and start once a day.
Can I use niacinamide with vitamin C?
Yes. Layer them, or use vitamin C in the morning and niacinamide at night.
Can I use niacinamide with retinol?
Yes. Niacinamide is a popular, gentle partner to retinol.
How often should I use a niacinamide serum?
Once or twice a day, morning and/or evening, followed by moisturizer and, in the morning, sunscreen.
For external use only. Avoid contact with eyes. If irritation occurs, discontinue use. Individual results vary.
