What Does Niacinamide Actually Do?

Niacinamide is in almost every serum right now. If you've spent any time looking at skincare ingredients, you've seen it. But most of what's written about it either oversimplifies or overclaims and a lot of it wouldn't pass a basic compliance check.

Here's what it actually does. No mechanism claims dressed up as facts. Just what you'll notice on skin and why it's worth using.

What niacinamide is

Niacinamide is a form of Vitamin B3. It's water-soluble, stable in formula, and well-tolerated by most skin types including sensitive and oily skin. It's been studied extensively and there's a solid body of published research behind it, which is part of why it became a staple ingredient.

It's not a trend. It's been in dermatology research for decades. The trend part is just that skincare brands caught up.

What you'll actually notice

Skin looks clearer and more even. This is the most consistent thing people report after using niacinamide regularly. Niacinamide targets uneven skin tone, post-blemish marks, general dullness - niacinamide is studied specifically for its effect on the visible appearance of skin tone and clarity.

Pores look more refined. Not smaller. Unfortunately our pore size is structural and doesn't change. But niacinamide helps skin look smoother and pores appear less prominent over time. That's a meaningful cosmetic difference even if the mechanism is more nuanced than "shrinks pores."

Skin looks less congested. For oily and blemish-prone skin this is the key one. Niacinamide helps skin look clearer and less congested with consistent use. It's why it became the go-to ingredient for that skin type specifically.

Skin looks more hydrated and balanced. Niacinamide works well alongside hydrating ingredients and helps the overall surface look more settled and less reactive, more even, less visibly stressed.

Why concentration matters

Not all niacinamide products are doing the same thing. Concentration matters.

You'll see niacinamide listed in products at anywhere from 2% to 20%. The research shows the sweet spot is generally around 5%,  enough to see visible results without the risk of irritation that comes at very high concentrations. Some people find that 10%+ causes flushing or sensitivity, particularly when combined with other actives.

The Clearing Rescue Serum uses 5% Niacinamide. That's the number because that's where the published research sits, not because it's a marketing figure.

What it's combined with in the Clearing Rescue Serum

Niacinamide doesn't work in isolation because what it's formulated with changes what it does on skin.

Canadian Willowherb™ is a clinically studied ingredient with antioxidant properties. It helps skin appear more comfortable and is specifically chosen for oily and blemish-prone skin. It's not a common ingredient. Most brands haven't used it because it's more expensive and less recognisable than the usual suspects. It's in the Clearing Rescue Serum  because it does something the niacinamide alone doesn't cover.

Willow Bark contains natural Salicin. It helps skin look smoother and more refined which is relevant for congested skin that needs more than just hydration.

Hyaluronic Acid helps skin look visibly plumped and hydrated. For oily and blemish-prone skin, dehydration is often part of the picture. Our skin overproduces oil partly because it's not getting enough moisture. The HA addresses that side of things while the niacinamide addresses the clarity side.

Liquorice Root is included for its brightening properties, specifically for the appearance of post-blemish marks and uneven tone.

The formula is fragrance-free and lightweight. Nothing in it is there for marketing reasons.

How to use it

Apply to clean skin before moisturiser or face oil. A few drops, pressed in gently. Morning, evening, or both, niacinamide is stable enough for twice daily use and doesn't increase sun sensitivity the way some actives do.

If you're also using Clearing Rescue Serum during a purging phase (where skin temporarily looks worse after introducing an active), the 5% concentration is intentionally chosen because it's effective without being aggressive. See our purging vs breakout post if you're not sure what's happening with your skin.

What to pair it with

For oily and blemish-prone skin: Clearing Rescue Serum first, then Super Restore Oil after. The serum addresses the surface of our skin - clarity, congestion, evenness. The oil addresses balance - helping skin look settled rather than stripped. They're doing different jobs.

For dullness and uneven tone: Clearing Rescue Serum first, then Super Glow Oil. The Vitamin C and Bakuchiol in the Glow Oil work on the brightness and texture side while the niacinamide works on evenness and clarity underneath.

What does niacinamide actually do?
Niacinamide is a form of Vitamin B3 that helps skin look clearer, more even, and less congested with consistent use. It is extensively studied and well-tolerated by most skin types including oily and sensitive skin. At 5% concentration, the level used in the Clearing Rescue Serum,  it helps reduce the visible appearance of blemishes, post-blemish marks, and uneven skin tone. It pairs well with Hyaluronic Acid for hydration and is commonly used for oily and blemish-prone skin. It can cause an initial purging phase where skin temporarily looks worse before improving, typically within four to six weeks.

Products mentioned: Clearing Rescue Serum — 5% Niacinamide · Super Restore Oil — Prickly Pear and Bakuchiol · Super Glow Face Oil — Bakuchiol and Vitamin C