Helloskin vs Naturium
Naturium's "Azelaic Topical Acid 10%" is a lovely, gentle serum with niacinamide and vitamin C — but here's the detail the name hides: it isn't azelaic acid. Its active is Potassium Azeloyl Diglycinate, an azelaic derivative (Naturium now even calls it an "Azelaic Acid Derivative Complex"). It's milder and more elegant, but it's a different, weaker molecule. We run the real acid, at a true 20%. Here's the breakdown — no spin, just chemistry.
Gentle, elegant and it does contain a good vitamin C — but the "azelaic" is a derivative, not the real acid.
The two formulas, side by side.
Every spec that matters — including where Naturium genuinely wins: gentleness and a vitamin C.
Azelaic acid, or an azelaic salt?
Potassium Azeloyl Diglycinate (PAD) is azelaic acid bonded to glycine into a water-soluble salt. It's elegant and gentle — but it's a different molecule, used at its own low levels, and it can't be read as "10% azelaic acid." If you want the actual, evidence-backed acid, it has to say Azelaic Acid on the label.
a derivative, not the acid
The active is Potassium Azeloyl Diglycinate — a gentle, water-soluble azelaic salt — with niacinamide and vitamin C. Lovely for sensitive skin, but it is not true azelaic acid, and the "10%" refers to the derivative blend, not 10% azelaic.
the real acid
A true 20% azelaic acid — the molecule with the actual research behind it for tone, texture and blemishes — with 10% Niacinamide and a salicylic-acid assist.
Credit where it's due: derivatives like PAD are genuinely gentler and more elegant, and Naturium's vitamin C is a real bonus we don't include. But if your goal is azelaic acid's actual benefits, a derivative at unstated strength isn't the same thing.
What the label really says.
Read past the product name to the active.
Naturium's serum is well-made and gentle, with a nice vitamin C. But its hero is a derivative, not azelaic acid — so if it's azelaic's real benefits you're after, ours is the true 20% acid.
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.
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.
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.
All 15 categories. Scored fairly.
Helloskin wins 10, ties 3, cedes 2. Naturium genuinely wins on gentleness and including a vitamin C — real credit. On being actual azelaic acid, at strength, we win.
Every ingredient. Both labels, side by side.
Note the third ingredient: Potassium Azeloyl Diglycinate, the azelaic derivative — there is no Azelaic Acid on Naturium's list. Niacinamide and Ethyl Ascorbic Acid (vitamin C) follow.
What Naturium gets right.
A fair amount. Naturium's serum is genuinely well-made: a gentle, water-soluble azelaic derivative that rarely stings, plus niacinamide and a stabilised vitamin C (ethyl ascorbic acid) that we don't include, and coffee-seed antioxidants — at around $30. For sensitive or reactive skin that can't tolerate strong azelaic, a derivative like this is a smart, comfortable choice.
Where we differ is honesty about the molecule. Naturium's active is Potassium Azeloyl Diglycinate — an azelaic derivative — not azelaic acid, and the "10%" is the derivative blend, not 10% azelaic. Derivatives are gentler but milder, and the real research is on the acid itself. We use a true 20% azelaic acid, with 10% Niacinamide and a salicylic-acid assist. If you want gentle, theirs is lovely; if you want actual azelaic acid, ours is the real thing.
What people actually ask.
Is Naturium's serum azelaic acid?
Is a derivative worse than real azelaic?
Naturium has vitamin C and we don't — does that matter?
Which should I choose?
How we stack up against the rest.
Every comparison is the same honest, ingredient-level breakdown. No marketing, just chemistry.
Helloskin vs The Ordinary
A cult 10% azelaic — but a silicone suspension that can grit and pill, with no niacinamide.
Helloskin vs Azclear
The AU pharmacy 20% azelaic — same strength as ours, but a bare medicated lotion with no niacinamide or BHA.
Helloskin vs Paula's Choice
The most elegant, fragrance-free 10% azelaic + 0.5% SA — beautifully soothing, but half the dose and ~$52.
Helloskin vs ANUA
A lovely K-beauty 10% azelaic in a full cica + ceramide base — gentle and cheap, but half the dose.
Helloskin vs Facetheory
The closest on strength — a true 15% azelaic with oat and rosehip — but below 20%, with no niacinamide.
Helloskin vs The INKEY List
A tidy, fragrance-free 10% azelaic with a redness-tint — but half the dose, no niacinamide or BHA.
Helloskin vs NINELESS
Astonishing-value true 10% azelaic with cica and snail — but half the dose across a 30+ ingredient list.
Helloskin vs Geek & Gorgeous
Sold as "20%" but it's a Potassium Azeloyl Diglycinate derivative (~6% azelaic-equivalent), not the real acid.
The real acid, not a derivative.
A true 20% azelaic acid — the studied molecule — with 10% Niacinamide, a salicylic-acid assist and antioxidants. Australian-made. $39.99.
Shop Azelaic 20% Serum — $39.99→
