How to Strengthen Your Skin Barrier
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Updated September 2026
Quick answer: Niacinamide is a form of vitamin B3 that helps calm the look of redness, refine the look of pores, even out tone and support a healthy skin barrier. It's gentle, works for almost every skin type, and pairs well with most other ingredients, including vitamin C and hyaluronic acid. Use it once or twice a day.
What is niacinamide?
Niacinamide, also called nicotinamide, is a water-soluble form of vitamin B3. In skincare it shows up in serums, toners and moisturizers, usually at 2% to 5%. Your skin uses it to make ceramides, the fats that hold your barrier together.
What does niacinamide do for skin?
- Calms redness. It has anti-inflammatory properties, which is why it shows up in formulas for rosacea-prone and sensitive skin.
- Refines the look of pores. It helps regulate oil, so pores look smaller over time.
- Evens tone. It helps fade the look of dark spots and post-breakout marks.
- Supports the barrier. More ceramides means less water loss and less sensitivity.
- Softens fine lines. With steady use, skin looks smoother.
Who should use niacinamide?
Pretty much everyone. It's especially useful for oily and blemish-prone skin, sensitive skin that gets red easily, and anyone dealing with uneven tone. It's one of the few actives dermatologists routinely suggest for sensitive skin.
How do you use niacinamide?
- Cleanse.
- Apply toner, if you use one.
- Apply a niacinamide serum, or skip this step if your moisturizer already has it.
- Moisturize, then use SPF in the morning.
Stick with 2% to 5%. Higher strengths aren't always better and can cause flushing in some people.
What can you mix with niacinamide?
| Pair it with | Why it works |
|---|---|
| Hyaluronic acid | Hydration plus barrier support |
| Vitamin C | Both help even tone. The old warning about mixing them is based on outdated research. |
| Salicylic acid (BHA) | BHA clears pores and niacinamide calms the redness that can follow |
| Bakuchiol or retinol | Niacinamide helps offset dryness from retinoids |
Our niacinamide products
- Relief & Repair Moisturizer: niacinamide with wild oats, shea butter and hemp seed oil for dry, sensitive skin.
- Clear Slate Pore Clearing Serum: niacinamide with bakuchiol, aloe and centella asiatica for blemish-prone skin.
- Soft Focus Daily Refining Toner: niacinamide with willow bark for pores and texture.
Frequently asked questions
How long does niacinamide take to work?
Redness and oiliness often improve within two to four weeks. Tone and pores take closer to eight to 12 weeks.
Can niacinamide cause breakouts?
It's rare. If you break out, it's more often the formula around it or a very high concentration. Try a lower strength.
Can you use niacinamide twice a day?
Yes. It's gentle enough for morning and night.
Is niacinamide good for sensitive skin?
Yes. It's one of the better-tolerated actives, and it helps strengthen the barrier that sensitive skin needs.
