If there's one active ingredient that suits dry, sensitive skin, it's niacinamide. Gentle, well tolerated and genuinely useful, it strengthens the skin barrier and calms redness — the opposite of the irritation many actives cause. Here's what niacinamide does for dry skin and how to use it well.
What is niacinamide?
Niacinamide is a form of vitamin B3. In skincare it's a multitasker that supports the skin's barrier, helps skin hold on to moisture, calms redness and irritation, and can improve the look of enlarged pores and uneven tone over time. It's water-soluble, stable, and unusually gentle — which is why it appears in so many products for sensitive and dry skin.
Why it's great for dry skin
Dry skin is really a barrier problem, and niacinamide helps the barrier directly: it supports the production of ceramides and other lipids that keep water in, which reduces trans-epidermal water loss. The practical result is skin that feels less tight, looks less red and blotchy, and holds hydration better. Because it's non-stripping, it also plays nicely alongside the humectants and emollients dry skin needs.
How to use niacinamide
Niacinamide is easy to slot in. You'll find it in serums, moisturisers and cleansers; a serum around 4–5% is plenty for most people (very high percentages can occasionally cause flushing in sensitive skin). Apply it after cleansing, before your moisturiser, morning and/or night. It's stable and non-irritating enough for daily use, and works under SPF and make-up.
What to pair it with
Niacinamide is a team player. It pairs beautifully with hyaluronic acid and glycerin (for hydration) and ceramides (for barrier repair) — see our hyaluronic acid guide. It also helps buffer stronger actives: using it alongside retinol can reduce the dryness and irritation retinol sometimes causes. The old worry about not mixing niacinamide with vitamin C is largely a myth for modern formulas — most people can use both without issues.
Mistakes to avoid
Don't chase very high percentages hoping for faster results — 4–5% is effective and less likely to cause flushing. Don't rely on niacinamide alone to fix dry skin; it supports the barrier but you still need humectants and a good moisturiser. And as always, introduce one new product at a time so you can tell what's working.
Frequently asked questions
Is niacinamide good for dry skin?
Yes — it's one of the best-tolerated actives for dry, sensitive skin. It strengthens the barrier, helps skin retain moisture and calms redness, so skin feels less tight and looks less blotchy.
How do I use niacinamide for dry skin?
Apply a niacinamide serum (around 4–5%) after cleansing and before moisturiser, morning and/or night. Pair it with hyaluronic acid and a ceramide moisturiser for the best results on dry skin.
Can I use niacinamide every day?
Yes. Niacinamide is gentle and stable enough for daily use, morning and night, for virtually all skin types, including sensitive and dry skin.
Can you use niacinamide with retinol or vitamin C?
Yes. Niacinamide pairs well with retinol and can reduce the irritation it causes. The idea that it can't be used with vitamin C is largely outdated — most people can use both without problems.
