Niacinamide
Also known as: Vitamin B3, Nicotinamide
- Main function
- Barrier support, oil regulation, tone-evening
How this behaves on melanin-rich skin
Niacinamide interrupts the signal that transfers pigment (melanosomes) from melanocytes to skin cells, which is why it's a go-to for fading post-inflammatory hyperpigmentation (PIH) — a common concern on deeper skin tones after acne, bumps, or shaving irritation. It's gentle enough for daily use without the sun sensitivity that comes with acids.
How this behaves in heat and humidity
Very stable in heat, so it holds up well in tropical storage conditions. Its oil-regulating effect is a genuine benefit in humidity, where excess sebum and sweat mixing can worsen breakouts and dullness. Layers well under sunscreen without turning greasy.
Spotting Fakes
Genuine niacinamide serums are usually thin and slightly milky, not thick or syrupy. Be wary of serums priced far below market rate at open markets — niacinamide is cheap to produce, but bottles that separate, smell strongly of alcohol, or arrive with peeling/misprinted labels are common counterfeit tells. Buy from the brand's verified store or an authorized Nigerian distributor where possible.