Niacinamide for Hair and Scalp: Benefits, Science, and How to Get the Most Out of It

Today, consumers demand hair solutions backed by science. Among the most studied active ingredients, niacinamide (vitamin B3) stands out for its multiple benefits for the scalp and hair . Its use in shampoos and hair treatments is not a passing trend, but a solid commitment based on clinical data. As experts in cosmetic formulation, we explain why niacinamide should be part of your hair routine.

What is Niacinamide?

Niacinamide is a water-soluble, active form of vitamin B3, known for its high skin tolerability . In cosmetic formulations, it is used in both facial products and hair solutions due to its ability to act at multiple levels of the skin and hair follicle.

Benefits of Niacinamide for Scalp and Hair

1. Strengthens the scalp barrier

Recent studies show that niacinamide increases the synthesis of ceramides and other essential lipids , strengthening the scalp's barrier function. This translates into improved water retention, reduced dryness, and less sensitivity.

2. Improves hydration and reduces transepidermal water loss (TEWL)

Niacinamide increases skin hydration levels by 23% and reduces water loss by 19% after 28 days of topical use, according to in vivo data. This is crucial for maintaining a supple and healthy scalp, especially under conditions of environmental stress or hormonal changes.

3. Stimulates hair growth and improves hair resistance

Niacinamide, when combined with other active ingredients such as caffeine and panthenol, has been shown to increase hair fiber diameter and improve its resistance to breakage . It also supports follicle health by protecting against oxidative damage.

4. Reduces inflammation and soothes irritation

Thanks to its anti-inflammatory properties, niacinamide helps reduce redness, itching, and discomfort associated with sensitive or damaged scalps.

5. Protects against environmental damage and UV exposure

It acts as an antioxidant shield, protecting the scalp and hair from free radicals generated by pollution and ultraviolet radiation, thus helping to prevent premature hair aging.

Applications in hair cosmetics

Today, premium shampoo, hair serum, and conditioner formulations incorporate niacinamide in concentrations of up to 5%, optimizing its effectiveness without compromising tolerability. Its inclusion in hair care routines is especially indicated for :

• Fine and fragile hair .
• Dry or sensitive scalp .
• Seasonal or hormonal hair loss problems.
• Damage from solar radiation or pollution .

Conclusion

Niacinamide is a versatile, safe, and scientifically backed cosmetic ingredient for comprehensive scalp and hair care. Adding niacinamide to products not only improves visible hair health but also helps preserve hair's vitality and resilience over the long term.

The future of hair care involves smart active ingredients like niacinamide!

Each product is backed by the expertise of Dr. Modesta , a pharmacist and founder committed to excellence in hair care.