Niacinamide is on almost every label right now. It has earned the attention, but the marketing has outrun the evidence in a few places. Here is the honest version.
What it is
Niacinamide is a form of vitamin B3. Applied topically it is unusually well tolerated — most people, including those with sensitive skin, can use it daily without irritation. That tolerance is most of why it appears everywhere.
What it actually does
- Strengthens the barrier. It boosts ceramide production, which reduces water loss and makes skin more resilient. This is its best-evidenced effect.
- Evens tone. It interferes with the transfer of pigment to surface cells, which fades post-acne marks and sun patches over time.
- Refines the look of pores. It helps regulate sebum, and less-congested pores read as smaller.
- Calms redness. Anti-inflammatory action helps with reactive, easily-flushed skin.
What percentage is worth paying for
Most benefits appear between 2% and 5%. Above 5% the returns flatten and the irritation risk climbs — flushing and tingling become common around 10%. A 10% product is not twice as good as a 5% one; for many people it is simply less comfortable.
We formulate at 5%, which sits at the top of the effective range and the bottom of the irritation range.
The vitamin C myth
You will still read that niacinamide and vitamin C cancel each other out. This came from studies conducted at high heat with pure ascorbic acid — conditions that do not resemble a modern formula on a human face.
In practice they are fine together. Plenty of well-regarded products contain both. In our own range they happen to be separated anyway: vitamin C sits in the morning sunscreen, niacinamide in the night cream.
How long before it works
Barrier improvements show up in two to four weeks. Tone and pigmentation take eight to twelve. If you stop, the benefits fade — this is maintenance, not a cure.