What niacinamide actually does.

Niacinamide — also called vitamin B3 or nicotinamide — is one of the few skincare ingredients with a broad body of clinical evidence behind it. It appears in our serum because it earns its place. This is what the research shows.

What it does

Strengthens the skin barrier. Niacinamide increases the production of ceramides, fatty acids, and cholesterol in the skin — the building blocks of a healthy barrier. A stronger barrier means less water loss, less sensitivity to environment, and more resilience over time. This is the foundational benefit.

Reduces visible redness. Multiple studies show measurable reduction in facial redness and blotchiness at concentrations of 2–5%. The mechanism involves its effect on microvascular function — less blood pooling near the surface.

Evens skin tone. Niacinamide inhibits the transfer of melanin from melanocytes to keratinocytes — the process responsible for post-inflammatory hyperpigmentation, the marks left after spots clear. At 5%, studies have shown reduction in hyperpigmentation comparable to 4% hydroquinone, without the photosensitivity concerns.

Regulates oil production. It reduces sebum excretion rates. For those with oily or combination skin, this translates to a more balanced complexion without drying.

Improves the appearance of pores. Not by shrinking pores — pore size is structural and cannot be changed — but by reducing their visibility. Cleaner skin surface, less sebum stretching pores open, more even texture overall.

What to look for in a formula

Concentration matters. The clinical evidence sits between 2% and 10%. Below 2%, the research is thin. Above 10%, some people experience flushing — a temporary, harmless reaction, but one worth avoiding in a daily product. 4–5% is the well-researched, well-tolerated sweet spot.

Stability. Niacinamide is water-soluble and stable across a wide pH range — more stable than vitamin C, for instance. But formulation quality still matters: look for a serum without added fragrance, in opaque or dark packaging, with a short and purposeful ingredient list. Unnecessary fragrance increases sensitisation risk. Unnecessary ingredients dilute the active.

Context. Niacinamide does not need special delivery systems or activators. It absorbs well in a simple water-based serum. Complexity in the bottle is not a signal of efficacy — clarity is.

What it cannot do

It will not resurface skin, fade deep scarring, or accelerate cell turnover — that is the domain of retinoids and exfoliating acids. It will not treat acne directly, though a stronger barrier and regulated sebum production are often indirectly useful. It will not whiten or bleach — it works on evenness of tone, not on lightness.

Niacinamide is a foundation ingredient, not a dramatic intervention. Its value is in consistent, cumulative improvement — the kind that happens quietly over weeks and months, until one day the skin simply looks more itself.

That is the brief we gave our formula.