When it comes to skincare, niacinamide has become a household name. But did you know this form of Vitamin B3 is just as powerful in haircare? From soothing an irritated scalp to supporting stronger, healthier strands, niacinamide is one of the most researched and widely used actives for a reason.
Why Niacinamide Is So Well Known
Niacinamide has earned its reputation because it works across multiple pathways at once. In skincare, it’s praised for strengthening the barrier, calming inflammation, and boosting hydration. In haircare, those same benefits apply but with the added bonus of supporting follicle health and improving the condition of the scalp environment, which directly influences how hair looks and grows.
Clinical research has shown that niacinamide derivatives can help improve hair density and quality, which is why you’ll find it featured in both dermatology-led and beauty-led formulas around the world.
What Niacinamide Does for Your Scalp
Your scalp is skin (we know we're stating the obvious here), and niacinamide treats it that way. Applied topically, niacinamide has been shown to:
- Strengthens the scalp barrier by encouraging natural ceramide production (the lipids that keep your skin strong and supple) and reducing transepidermal water loss, so the scalp stays hydrated and resilient against irritation.
- Soothe irritation with its anti-inflammatory properties, easing discomfort and reducing redness or sensitivity.
- Balance oil by regulating sebum production, making it especially helpful for scalps that feel greasy or congested.
- Support the microbiome indirectly, by keeping the barrier strong and irritation in check.
It has been described by leading haircare brands globally as essential for creating a balanced growth environment - one that protects scalp hydration, strengthens hair at the root, and helps calm oily or inflamed scalps.
What Niacinamide Does for Hair
Niacinamide’s scalp benefits naturally translate into visible improvements in hair quality:
- Improved resilience: A stronger scalp barrier creates a healthier foundation for growth.
- Thicker, stronger-looking strands: Niacinamide boosts circulation, which is linked to better follicle support.
- Shine and suppleness: By improving hydration and keratin synthesis, hair appears smoother, glossier, and less brittle.
It has also been described as an ingredient that can increase body, suppleness, and shine while improving the texture of hair that has been physically or chemically damaged.
Niacinamide in Shampoos, Conditioners, and Masks
One of niacinamide’s strengths is its versatility - it works in both quick-contact and longer-contact formulas.
- In a shampoo: Even with rinse-off contact, niacinamide can help reduce oiliness, soothe irritation, and leave the scalp feeling balanced. It’s particularly beneficial for those prone to postpartum sensitivity or changes in oil production.
- In a conditioner: Applied mid-lengths to scalp, it reinforces scalp comfort while helping your hair hold onto hydration, making it softer and more manageable.
- As a mask: When left on longer, niacinamide has greater time to strengthen the barrier, calm irritation, and support circulation at the scalp, enhancing both comfort and visible hair quality.
This means whether you’re rushing through a quick wash or indulging in a 15-minute (or more) reset, niacinamide is still working hard for both scalp and hair.
Why Niacinamide Earned Its Place in the Perinatal Complex
During pregnancy and postpartum, the scalp can often feel less predictable - oilier, more sensitive, or prone to sudden changes. In our survey, many women told us that alongside hair loss and regrowth concerns, scalp shifts like irritation and imbalance became more noticeable during this life stage. These insights became the foundation for our Perinatal Complex.
This is where niacinamide comes in. Known for strengthening the scalp barrier, calming sensitivity, and balancing oil, it helps create the steady, resilient foundation your hair needs to grow stronger and healthier-looking over time.
Healthy Hair Starts with the Scalp
Niacinamide proves that sometimes the best way to care for your hair is to start with your skin. Whether in a shampoo, conditioner, or mask, this multitasking form of Vitamin B3 strengthens, soothes, and supports both hair and scalp making it one of the most trusted ingredients in modern haircare.
At Maze, we believe understanding the why behind each ingredient makes your routine more meaningful. With niacinamide (Vitamin B3), that “why” is versatility: it strengthens the scalp barrier, soothes irritation, balances oil, and supports healthier, more resilient hair fibres over time.
And niacinamide is only one part of our Perinatal Complex. Alongside centella asiatica, green tea, and saw palmetto, it forms a targeted system designed around the real concerns women told us about during pregnancy and postpartum - from scalp sensitivity and hair loss to regrowth and resilience. Explore each of these actives in our ingredient spotlights on the Maze Wesbite to see how they work together.
