The Inkey List Niacinamide Review
#3 of 8 · Best budget✓ Product photos checked Oct 10, 2026Real retailer photo, cut out. Label unedited.
Buy it. The budget benchmark that supports the barrier — 10% niacinamide + 1% hyaluronic acid, a few dollars. Same sensible 10% niacinamide as the leaders, plus 1% hyaluronic acid for hydration and a gentler feel on the barrier — fragrance-free, lightweight, and roughly $10 for 30 ml.
$10 / 30 ml bottle≈ $0.33 / ml
Why It Scores 8.4 — And The Label Line Behind Each Number
Effective concentration (matched to evidence)
30% of score10% niacinamide is the same sensible, evidence-matched strength as the leaders (Bissett 2005 at 5%), so it scores high — effective for tone, oil and pores. A touch below #1 only because it's the same strength with slightly less standout support.
Barrier-supporting formula
25% of score1% hyaluronic acid adds hydration and makes the base gentler and less drying — a genuine barrier bonus. It lacks zinc, so for oily/blemish skin the support profile is narrower than #1's, keeping it just short of the top tier here.
Tolerability + real-world response
20% of scoreThe HA cushion makes it feel gentler than a bare niacinamide solution, and it's fragrance-free and layers well. Still 10%, so the most reactive skin may want to start every other day.
Value (cost per ml / per course)
15% of scoreAt roughly $10 for 30 ml (~$0.33/ml) it's near-benchmark value — a few dollars for a well-rounded, barrier-friendly formula, second only to The Ordinary on pure cost.
- Size
- 30 ml bottle
- Price
- ≈ $10 / 30 ml bottle
- Cost per ml
- ≈ $0.33 / ml
Formulation extras + finish
10% of scoreA simple, honest actives panel and clean layering, but no antioxidant load or luxe finish — great value rather than a feature-rich formula, which is why it settles below the more elaborate picks on this axis.
- More Specs
- Niacinamide
- 10% (sensible, evidence-matched strength)
- Key support
- 1% hyaluronic acid (hydration / barrier)
- Base
- Lightweight, fragrance-free serum
- Format
- Lightweight everyday serum, once or twice daily
- Fragrance
- Fragrance-free
Photos checked.This product has no Supplement Facts panel; the retailer's listing photos were reviewed Oct 10, 2026.
Marketing Claims Vs. Reality
Contains 10% niacinamide and 1% hyaluronic acid.
The 10% niacinamide + 1% hyaluronic acid composition is stated on the label and matches the product's documented formula and the specs shown.
Hyaluronic acid hydrates and supports the barrier.
Hyaluronic acid is a well-established humectant, so the hydration claim is on solid ground — it draws and holds water in the skin, which cushions the formula and makes it less potentially-drying than a bare niacinamide solution.
Controls oil and reduces the appearance of enlarged pores.
Niacinamide has real sebum-control evidence (Draelos 2006, 2% cut facial sebum), so the oil-control direction is supported. But the specific pore-appearance claim for this finished product is a manufacturer statement, not a result from a trial on this serum, and it carries no zinc to reinforce the oil-support side.
Fragrance-free and lightweight.
The fragrance-free, lightweight description is consistent with the disclosed formula and the brand's published INCI — a barrier-respecting base appropriate for a niacinamide serum.
What Our Test Actually Found
Budget without the compromise
The Inkey List gives you the same sensible 10% niacinamide as the leaders for a few dollars, plus 1% hyaluronic acid that most cheap niacinamide serums leave out. It's the rare budget pick where the formula is genuinely well-rounded rather than stripped down to hit a price.
The HA makes it the gentler-feeling choice
Bare niacinamide solutions can feel slightly drying; the 1% hyaluronic acid here cushions that, drawing water into the skin and making the serum more comfortable, especially for normal-to-dry types. That hydration bump is exactly the kind of barrier support niacinamide is supposed to deliver.
It skips zinc — which is where #1 still wins
The one meaningful gap versus The Ordinary (#1) is zinc. For oily, blemish-prone skin, zinc's sebum support is worth having, so #1 edges this out there. Inkey trades that for hydration instead — a better fit for drier skin, a slightly weaker one for very oily skin.
Near-benchmark value
At roughly $0.33/ml it's second only to The Ordinary on cost, and under the quality-over-price rule that's a clean win because the formula is genuinely good, not just cheap. Most people could use this long-term and never feel they'd bought down.
Start slow if you're reactive
It's still 10% niacinamide, so the most reactive skin should start every other day and build up, even with the HA cushion. The hydration helps tolerability but doesn't lower the active strength.
Full analysis: all pros & cons (8), buy if / skip if
- 10% niacinamide plus 1% hyaluronic acid — oil/pore control and a hydration bump in one cheap bottle
- The HA base feels more cushioned and less drying than a bare niacinamide solution
- Fragrance-free, lightweight, layers well, with a deep Amazon track record
- Near-benchmark value — a few dollars for a well-rounded, barrier-friendly formula
- Gentle and forgiving — a good first niacinamide serum for normal-to-dry skin
- No zinc, so slightly less blemish/sebum support than #1 for very oily skin
- 10% is still a touch strong for the most reactive skin — start every other day if needed
- Simple actives panel — great value, not a luxe or antioxidant-loaded formula
- You want a well-rounded 10% serum on the tightest budget
- Your skin leans normal-to-dry and you want the hydration bump from HA
- You want a barrier-friendly base without paying premium prices
- You're new to niacinamide and want a gentle, forgiving formula
- You have very oily, blemish-prone skin and want the zinc — go #1 instead
- You want an antioxidant-loaded or luxe formula — this is deliberately simple
- Your skin is very reactive to 10% — start every other day
Same sensible 10% niacinamide as the leaders, plus 1% hyaluronic acid for hydration and a gentler feel on the barrier — fragrance-free, lightweight, and roughly $10 for 30 ml. It skips zinc (so #1 edges it for oily skin), but for normal-to-dry skin on a tight budget this is arguably the smartest buy on the page.
The Inkey List Niacinamide is the budget pick that doesn't feel like a compromise. You get the same sensible 10% niacinamide as the category leaders, plus 1% hyaluronic acid that adds hydration and makes the serum gentler on the barrier — which is exactly what you want niacinamide doing. The HA base gives it a more cushioned, less potentially-drying feel than a bare niacinamide solution, and it's fragrance-free, lightweight and layers well. It skips the zinc, so The Ordinary (#1) still edges it for oily, blemish-prone skin, but for a few dollars this is a well-rounded, barrier-friendly formula most people would happily use long-term. If your budget is tight and your skin leans normal-to-dry, it's arguably the smartest buy on the page.
The smartest budget buy — a barrier-friendly 10% serum that doesn't feel like a compromise.
The Inkey List is the budget pick that doesn't feel like settling. You get the same sensible 10% niacinamide as the leaders, plus 1% hyaluronic acid that adds hydration and makes the serum gentler on the barrier — exactly what you want niacinamide doing. The HA cushion gives it a more comfortable, less-drying feel than a bare solution, and it's fragrance-free, lightweight and layers well. It skips the zinc, so The Ordinary (#1) still edges it for oily, blemish-prone skin. But for a few dollars this is a well-rounded, barrier-friendly serum most people would happily use long-term, and if your budget is tight and your skin leans normal-to-dry, it's arguably the smartest buy on the page. Start once daily, apply to slightly damp skin, and build from there.
If This Doesn’t Fit — Try These
01The Ordinary Niacinamide 10% + Zinc 1%
If you want one niacinamide serum and don't want to overthink it, this is the answer and has been for years.
04Good Molecules Niacinamide Serum
Good Molecules is the dependable, do-the-job everyday serum.
02Paula's Choice 10% Niacinamide Booster
This is what you buy when you want the niacinamide use case done properly instead of just cheaply.
Quick Answers
Inkey List or The Ordinary — which budget pick should I get?
It comes down to skin type. Both are 10% niacinamide for a few dollars; the difference is the support ingredient. The Ordinary adds 1% zinc for sebum and blemish control — better for oily, breakout-prone skin. The Inkey List adds 1% hyaluronic acid for hydration — better for normal-to-dry skin that wants a gentler, more cushioned feel. Neither is a mistake.
Does the hyaluronic acid actually do anything at 1%?
Yes — hyaluronic acid is a proven humectant, and even at 1% it draws water into the skin, which cushions the formula and makes it feel less drying than a plain niacinamide solution. It's not a dramatic plumping treatment at that level, but it's a real, worthwhile barrier bonus for the price.
Is 10% too strong for beginners?
For most people, no — 10% is the sensible standard strength and this formula's HA cushion makes it gentle. But if your skin is very reactive, start every other day and build up. Niacinamide is one of the best-tolerated actives there is, so most beginners do fine with daily use.
Can I layer it with other serums?
Yes. It's fragrance-free and lightweight, and niacinamide plays well with almost everything, including vitamin C and retinoids. Apply the thinnest, most water-like layers first, let each absorb, and it slots easily into a routine.
Sources & Further Reading
2 peer-reviewed sources, each linked to PubMed
- [1] Bissett 2005 PMID 16029679 — Niacinamide: A B vitamin that improves aging facial skin appearance. 5% topical niacinamide reduced fine lines, dark spots, redness and sallowness over 12 weeks — evidence that a moderate strength works, supporting this serum's sensible 10% over higher-number rivals.
- [2] Draelos 2006 PMID 16766489 — The effect of 2% niacinamide on facial sebum production. Topical 2% niacinamide reduced facial sebum excretion — the reference for niacinamide's oil-control mechanism, relevant to this serum's oil/pore claims even without added zinc.
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