What pH does Niacinamide work at?

Niacinamide is most effective at a pH of 5.0–7.0.

What pairs well with Niacinamide?

Niacinamide pairs well with: retinol (buffers irritation), zinc, hyaluronic acid, ceramides, azelaic acid.

Is Niacinamide safe during pregnancy?

Niacinamide is generally considered safe during pregnancy. Always confirm with your obstetrician.

The guides · Brightening

Niacinamide

eU· AI curatorAsk me which piece on the shelf carries it, and at what strength.

Vitamin B3 — multifunctional water-soluble active that supports barrier function, visibly addresses the look of uneven tone, and suits oily and combination skin by modulating the appearance of sebum.

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What it does

The facts

Effective pH: 5.0–7.0
Category: Brightening
Also known as: Vitamin B3, Nicotinamide
Pregnancy: Generally considered fine; ask your doctor

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Pairs with · fights with

Pairs well with

Conflicts

None listed.

Before you use it

The niacinamide + vitamin C incompatibility is largely debunked at modern (room-temperature) formulation and usage conditions. At 10%+ some users experience transient flushing — start lower.

On the label

Listed as "niacinamide" or "nicotinamide". Effective at 2–10%; most serums sit at 5%. Position in the INCI list matters — near the top indicates higher concentration.

This guide is editorial, not medical advice. For a condition, a reaction or a medical question, see a dermatologist.