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🧪 An honest comparison — a tidy 10% serum, or a true 20% with niacinamide
An Honest Comparison

Helloskin vs The INKEY List

The INKEY List's SuperSolutions 10% Azelaic is a genuinely nice budget serum — a true 10% azelaic in a clean water base with allantoin and a green tint that instantly counters redness, fragrance-free and around $30. Credit there. But it's 10% (half our dose), with no niacinamide and no BHA. We run a true 20% with 10% Niacinamide. Here's the breakdown — no spin, just chemistry.

Updated
Sept 2026
Reviewed by
Formulation Team
Read
6 min
Azelaic Acid
20%
True 20% vs 10%
Niacinamide
10%
Yes vs none
Salicylic (BHA)
Yes
Included vs none
Made In
🇦🇺
Australia
"

A clean, likeable 10% with a clever redness-tint — but half the dose, no niacinamide, no BHA.

— The INKEY List, Honest Verdict
Australian-Made · No Script
True Azelaic · 10% Niacinamide · $39.99
Helloskin Azelaic Acid 20% Serum
20%
true azelaic
A true 20% azelaic acid serum with 10% Niacinamide and a salicylic-acid (BHA) assist, antioxidant-protected with Ferulic Acid and Vitamin E, in a light, dissolved serum base. Prescription-strength azelaic, no script. $39.99 / 30ml.
10% Azelaic · +Allantoin · fragrance-free · ~$30
The INKEY List SuperSolutions 10% Azelaic Serum
10%
true azelaic
A true 10% azelaic in a light, fragrance-free water serum with allantoin and green-tint particles that visually neutralise redness on contact. Likeable and affordable — but half the dose, with no niacinamide and no BHA.
At A Glance

The two formulas, side by side.

Every spec that matters — including where The INKEY List genuinely wins.

Spec
Helloskin
The INKEY List
Azelaic Acid
Helloskin
20%true
The INKEY List
10%true
Niacinamide
Helloskin
10%
The INKEY List
None
Salicylic Acid (BHA)
Helloskin
Yes
The INKEY List
None
Antioxidants
Helloskin
Ferulic + Vitamin E
The INKEY List
None
Instant redness tint
Helloskin
No
The INKEY List
Green-tint particles
Soothing
Helloskin
Niacinamide + Betaine
The INKEY List
Allantoin
Fragrance-Free
Helloskin
No — contains Parfum
The INKEY List
Yes
Made In
Helloskin
🇦🇺 Australia
The INKEY List
UK
Price
Helloskin
$39.9930ml
The INKEY List
~$3030ml
The Science

A clean 10%, or a full 20%?

The INKEY List did the 10% serum well — a proper water-based solution (not a suspension), fragrance-free, with a clever green tint that counters redness the moment you apply it. It's a likeable starter. We go to a true 20% and add the actives it leaves out.

The INKEY List
10%

clean & clever

A true 10% azelaic in a light, fragrance-free serum with allantoin and green-tint particles for instant redness cover. Well-made and affordable — but half the dose, with no niacinamide, no BHA and no antioxidants.

Helloskin
20%

full-strength

A true 20% azelaic with 10% Niacinamide, a salicylic-acid assist and Ferulic Acid + Vitamin E — double the dose and a fuller active line-up.

Credit where it's due: the fragrance-free base and the redness-cancelling tint are genuinely nice touches, and it's cheaper. We trade the tint for double the azelaic, niacinamide and a BHA.

The Math

What each label delivers.

Both true azelaic. Dose and extras differ.

Item
Helloskin
The INKEY List
Azelaic acid
Helloskin20% (true)
INKEY List10% (true)
Niacinamide
Helloskin10%
INKEY ListNone
Salicylic (BHA)
HelloskinYes
INKEY ListNone
Antioxidants
HelloskinFerulic + Vit E
INKEY ListNone
Actives beyond azelaic
Helloskin3
INKEY ListAllantoin + tint

The INKEY List is a clean, cheap 10% with a clever tint. But we give double the azelaic plus niacinamide, a BHA and antioxidants — a fuller serum for about ten dollars more.

The Benchmark

Prescription-strength azelaic, without the prescription.

Dermatologists prescribe azelaic acid at 15–20% (Skinoren is 20%, Finacea 15%). Most over-the-counter serums stop at 10% — half. We run a full, true 20%, on the shelf, no script.

Strength
20%

True azelaic acid — the prescription ceiling

The same 20% concentration a dermatologist prescribes as Skinoren, in a cosmetic serum you can just buy — paired with 10% Niacinamide and a salicylic-acid (BHA) assist.

Form
0grit

Dissolved, not suspended or "derivative"

Real azelaic acid, carried in a light Undecane/Tridecane serum base that spreads clean — not a gritty silicone suspension, and not a milder Potassium Azeloyl Diglycinate stand-in.

Azelaic acid is dose-dependent and a higher percentage is stronger — it can also be more active on sensitive or rosacea-prone skin, so patch-test and build up slowly. Not medical advice; azelaic acid at these levels is a cosmetic ingredient here, not a substitute for prescribed treatment.

Full Scorecard

All 15 categories. Scored fairly.

Helloskin wins 10, ties 2, cedes 3. The INKEY List genuinely wins on being fragrance-free, its redness-tint and price. On dose and actives, we win.

Category
Helloskin
The INKEY List
Why
Azelaic Strength
HS
10
INK
5
HS 20% vs 10%
Niacinamide / Tone
HS
9
INK
2
HS 10% vs none
Salicylic (BHA)
HS
8.5
INK
2
HS BHA vs none
Antioxidant Protection
HS
8.5
INK
3
HS Ferulic + E vs none
Soothing / Redness
HS
8
INK
7
HS niacinamide + betaine vs allantoin
Hydration System
HS
8.5
INK
7
HS fuller humectant blend
Fragrance-Free / Sensitive
HS
6
INK
8.5
INK fragrance-free; we contain Parfum
Instant Redness Cover
HS
5
INK
8
INK green-tint neutralises redness
Cosmetic Elegance
HS
8.5
INK
8.5
Tie both light serums
Multi-Benefit Breadth
HS
9
INK
4.5
HS 4 actives vs azelaic + tint
Dosing Transparency
HS
9
INK
8.5
HS actives % declared
Provenance
HS
9
INK
7
HS Australian in-house
Azelaic Results Power
HS
9
INK
6
HS 20% vs 10%
Size Clarity
HS
9
INK
9
Tie both 30ml
Value per Dollar
HS
8
INK
8.5
INK ~$30 vs $39.99
Helloskin wins 10 of 15
The INKEY List is a clean, fragrance-free 10% with a clever redness-cancelling tint, and it's cheaper — three genuine wins. But it's half our azelaic, with no niacinamide, BHA or antioxidants. We deliver a true 20% with a full active line-up.
Full Transparency

Every ingredient. Both labels, side by side.

The INKEY List keeps it simple: true 10% azelaic (2nd), allantoin to soothe, gardenia for the green redness-tint. No niacinamide, no BHA, no antioxidant — and half our dose.

Helloskin
18functional ingredients
Aqua (Water), Azelaic Acid, Niacinamide, Undecane, Tridecane, Propanediol, Polyacrylamide and C13-14 Isoparaffin and Laureth-7, Polyglycerin-6, Betaine, Benzyl Alcohol, Salicylic Acid, Glycerin, Sorbic Acid, Disodium EDTA, Ferulic Acid, Tocopherol, Citrus Reticulata Rosso, Parfum
The INKEY List
17true 10% azelaic, water serum
Aqua (Water), Azelaic Acid, Propanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Acacia Senegal Gum, Xanthan Gum, Allantoin, Glycerin, Ethylhexylglycerin, Polysorbate 60, Sorbitan Isostearate, Maltodextrin, Sodium Hydroxide, Hydrolyzed Gardenia Florida Extract, Gardenia Florida Fruit Extract, Polylysine
Being Fair

What The INKEY List gets right.

A fair amount for the money. The INKEY List's 10% is a proper water-based serum (not a suspension), fragrance-free, with allantoin to soothe and a green tint that visually cancels redness the instant you apply it — a genuinely clever touch — at around $30. As an affordable, gentle, likeable starter azelaic, it's a good buy.

Where we pull ahead is dose and actives. Theirs is 10%; ours is a true 20%. Theirs is azelaic, allantoin and a tint; ours adds 10% Niacinamide, a salicylic-acid assist and Ferulic Acid + Vitamin E. Double the azelaic and a fuller formula for about ten dollars more. The honest trade: they're fragrance-free, cheaper, and that redness-tint is a nice everyday perk.

Common Questions

What people actually ask.

Is The INKEY List a suspension like The Ordinary?
No — it's a proper water-based solution, so it doesn't have the grit or pilling issue. It's a nicely-made 10% serum; it's just half our dose, with no niacinamide or BHA.
What's the green tint for?
The gardenia-derived green particles visually neutralise redness on contact — a clever cosmetic perk we don't offer. It's about instant appearance, not treatment; our azelaic + niacinamide work on redness over time at double the strength.
Why pay more than The INKEY List?
For double the azelaic (a true 20%), plus 10% niacinamide, a BHA and antioxidants. If you want a gentle, fragrance-free, cheaper 10% with a redness-tint, theirs is great; for stronger results in a fuller serum, ours.
Which should I choose?
Budget, fragrance-free, or you love the redness-tint? The INKEY List at ~$30. Want the strongest true azelaic with niacinamide and a BHA? Helloskin's 20% at $39.99.
Ready When You Are

Double the azelaic, plus the actives it skips.

A true 20% azelaic with 10% Niacinamide, a salicylic-acid assist and antioxidants — twice the dose of the tidy 10% serums. Australian-made. $39.99.

Shop Azelaic 20% Serum — $39.99→
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Helloskin Azelaic Acid 20% Serum
$39.99 · true 20% azelaic
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