Reviewed
Verified by SAC team
+20
XP on completion
The Inkey List Niacinamide — product image
Best budget
The INKEY List · 10% niacinamide + 1% hyaluronic acid serum, 30 ml

The Inkey List Niacinamide Review

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.

Check on Amazon

Affiliate link — Super Achiever Club earns a small commission at no extra cost to you.

Read the complete Looksmaxxing guide →
▸ THE SCORE

How we built the SAC Product Score™8.4/10

Effective concentration (matched to evidence)30%8.8/10

10% 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 formula25%8.2/10

1% 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 response20%8.4/10

The 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%8.9/10

At 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.

Formulation extras + finish10%7/10

A 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.

▸ SPECS

The product at a glance

Niacinamide
10% (sensible, evidence-matched strength)
Key support
1% hyaluronic acid (hydration / barrier)
Base
Lightweight, fragrance-free serum
Size
30 ml bottle
Price
≈ $10 / 30 ml bottle
Cost per ml
≈ $0.33 / ml
Format
Lightweight everyday serum, once or twice daily
Fragrance
Fragrance-free
▸ TRUTH CHECK

Marketing claims vs. reality

Verified

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.

Verified

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.

Partial

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.

Verified

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.

▸ THE DEEP DIVE

What our test actually found

01Budget 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.

02The 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.

03It 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.

04Near-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.

05Start 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.

▸ THE TRADE-OFFS

Pros & cons, no sugar-coating

Pros
  • 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
Cons
  • 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
▸ THE BOTTOM LINE

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.

Check The INKEY List · 10% niacinamide + 1% hyaluronic acid serum, 30 ml on Amazon
▸ ALTERNATIVES

If this doesn’t fit — try these

▸ RESEARCH

Sources & further reading

  1. Bissett 2005Bissett DL, Oblong JE, Berge CA · 2005 · Dermatologic Surgery · 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 2006Draelos ZD, Matsubara A, Smiles K · 2006 · Journal of Cosmetic and Laser Therapy · 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.