Niacinamide (nicotinamide) boosts intracellular NAD⁺, supports DNA repair, and exhibits anti‑inflammatory effects in keratinocytes. Topical 4 % solutions improve hair fullness and reduce scalp irritation.

Niacinamide

Nicotinamide
Niacinamide (nicotinamide) boosts intracellular NAD⁺, supports DNA repair, and exhibits anti‑inflammatory effects in keratinocytes. Topical 4 % solutions improve hair fullness and reduce scalp irritation.
				
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