What Does Niacinamide Do for the Hair? The Science of a Healthy Scalp

Healthy hair begins at the root. Long before shine, strength, and thickness emerge, the scalp determines the fate of every strand. But what if a single ingredient could rebalance, rejuvenate, and prepare your scalp for optimal growth?

That ingredient is niacinamide. Once confined to facial serums, this multitasking vitamin is fast becoming a hero in modern haircare. In Glisns Healthy Scalp Nectar, niacinamide takes center stage, alongside exfoliating cranberry enzymes, circulation-boosting rosemary, and purifying tea tree—creating a ritual designed for all hair types.

The Role of Niacinamide in Scalp and Hair Health

A Multitasker in Modern Hair Science

Niacinamide, a bioactive form of vitamin B3, plays a critical role in cellular energy production and repair. On the scalp, this translates into:

Sebum regulation for balanced oil levels
Anti-inflammatory support to calm irritation
Barrier reinforcement to retain hydration
Antioxidant defense against environmental stress

Together, these effects nurture the scalp ecosystem and prime hair follicles for growth.

Balancing Sebum and Preventing Build-Up

An oily scalp often leads to clogged follicles, flaking, and poor hair health. Clinical studies have shown niacinamide can reduce sebum production over 2–4 weeks of consistent use (Draelos, Journal of Cosmetic Dermatology, 2006).

For dry scalps, it works oppositely—helping strengthen the barrier and retain essential moisture.

Calming Inflammation and Flakes

Scalp irritation—whether from product overload, environmental stress, or underlying conditions—can sabotage hair growth. Niacinamide has proven anti-inflammatory properties that soothe redness, itching, and flakiness (Gehring, International Journal of Dermatology, 2004).

Supporting Follicular Strength and Longevity

Hair follicles are highly susceptible to oxidative stress. In vitro studies on dermal papilla cells found niacinamide reduces reactive oxygen species and cellular senescence markers while extending the anagen (growth) phase (Lee et al., Molecular Medicine Reports, 2021).

This suggests niacinamide may help maintain follicle vitality and slow thinning over time.

Why a Pre-Wash Scalp Serum Is Essential

In traditional routines, the scalp is an afterthought. Glisns Healthy Scalp Nectar challenges this narrative, delivering a pre-wash ritual that prepares your scalp for cleansing and nourishment.

Applied to dry hair, this serum stays on for 20–30 minutes, allowing active ingredients to penetrate and perform before shampooing.

Glisns Healthy Scalp Nectar: A Closer Look

The Formula: Niacinamide Meets Botanical Intelligence

Glisns Healthy Scalp Nectar combines niacinamide with carefully selected botanicals and actives for a comprehensive scalp treatment:

Niacinamide – Regulates oil, reduces inflammation, protects follicles.
Cranberry Enzymes – Gently exfoliate dead skin cells and product residue.
Rosemary Oil – Promotes circulation and may rival minoxidil in supporting growth (Panahi et al., Phytotherapy Research, 2015).
Tea Tree Oil – Offers antimicrobial properties to maintain a clean, balanced scalp.
Hyaluronic Acid – Locks in hydration, counteracting dryness and sensitivity.

Suitable for All Hair Types

From fine and straight to thick and coily, the Healthy Scalp Nectar is designed to work across textures and needs. It’s particularly beneficial for:

✅ Oily or flaky scalps
✅ Dry, tight, or irritated skin
✅ Weak, thinning, or shedding hair
✅ Those seeking a healthier foundation for growth

The Ritual: How to Use

Apply directly to dry scalp, section by section.
Massage gently to distribute evenly.
Leave on for 20–30 minutes.
Wash hair as usual with a gentle cleanser.
Repeat 2–3 times per week for best results.

The Science of Consistency: Timelines and Expectations

Timeframe	Expected Benefits
1–2 weeks	Reduced irritation and flakes; scalp feels balanced
1–3 months	Improved hydration, softness, and less breakage
3–6 months	Noticeable thickness, reduced shedding, healthier growth

Consistency is key. Just as your skin thrives with regular care, so does your scalp.

Why Pair Niacinamide with Cranberry, Rosemary, and Tea Tree?

This blend is more than the sum of its parts:

Cranberry exfoliates without microbeads or harsh acids, supporting cell turnover.
Rosemary stimulates blood flow, encouraging nutrient delivery to follicles.
Tea Tree keeps microbial balance in check, calming irritation.

When combined, they create an environment where niacinamide’s benefits are fully optimized.

What Sets Glisns Apart?

Unlike rinse-off shampoos or leave-in tonics, Glisns Healthy Scalp Nectar creates a moment of intentional care. Its luxurious, spa-like aroma and sensorial texture transform scalp treatment into ritual—a cornerstone of holistic hair wellness.