Product

Facetheory Blemicalm Azelaic Acid 10% Clarifying Serum

Genuine dissolved 10% azelaic acid — no grit, no pilling — from a UK brand that keeps renaming it and running out of stock.

At a Glance

Mixed

In this serum the azelaic acid is dissolved rather than suspended as particles. That is why it feels smooth, with no grit, pilling or white cast. It solves the main complaint about cheaper versions.

It is real azelaic acid at 10%, not a derivative. The formula also includes colloidal oatmeal, a recognized skin protectant that pairs well with an ingredient that can sting.

As with all 10% products, the strongest research used 15% or 20%. A 15% version of this serum exists, which is closer to the strength used in studies, if your skin can handle it.

Key facts

Key active	Azelaic acid 10%
Texture	Smooth emulsion (dissolved, not suspended)
Best for	Rosacea and acne, if you can get hold of it
Approximate price	$20–$26
Fragrance	Fragrance free

How it works

The azelaic acid is actually dissolved, not suspended — and that is the whole point. No grit, no pilling, no white cast. It sidesteps The Ordinary's main flaw without Paula's Choice's price.

Real azelaic acid at 10%, not a derivative.

Colloidal oatmeal is in the formula — an FDA-recognised skin protectant, and a sensible thing to pair with an ingredient that stings.

A 15% version also exists, which is closer to the strength the actual research used.

Everyday habits

How to use it

When: Once a day at night to start, then morning and night if tolerated.How much: A pea-sized amount over the face. Steps: Apply to clean, dry skin before moisturizer. Sun care: Use sunscreen during the day. A caveat: Expect some stinging early on, and patch test first. Azelaic acid can lighten deeper skin tones.

Who should be careful+

The brand keeps renaming this product, and it is genuinely confusing. It has been Azeclear, then Lumizela, and is now Blemicalm. The old URLs still work, which is why reviews and articles contradict each other. You may struggle to tell whether a review you are reading is about the product you are buying.

It is frequently out of stock.

It is a UK brand. For US buyers that means shipping time, import friction, and harder returns.

The 10% caveat applies. The studies that built azelaic acid's reputation used 15% or 20%. Facetheory sells a 15% — if you can tolerate it, that is closer to the evidence.

Expect stinging early on, and know that azelaic acid can lighten deeper skin tones.

Questions people ask+

Is this real azelaic acid?Yes, at 10%, and it is dissolved rather than suspended.

Why do reviews contradict each other?The product has been renamed from Azeclear to Lumizela to Blemicalm. Old reviews may describe an earlier version.

Is there a stronger version?Yes, a 15% version exists, closer to the strength used in studies.

Is it fragrance-free?Yes, it is sold as unscented.

Any downsides to buying it?It is a UK brand, so US buyers may face shipping delays and it is often out of stock.

Full ingredient list+

Aqua, Propanediol, Butyloctyl Salicylate, Azelaic Acid, Glycerin, Glyceryl Stearate, Avena Sativa (Oat) Kernel Flour, Rosa Canina (Rosehip) Seed Oil, Cetyl Hydroxyethylcellulose, Glyceryl Caprylate, Xanthan Gum, Aloe Barbadensis (Aloe Vera) Leaf Juice, Camellia Sinensis (Green Tea) Leaf Extract, Sodium Anisate, Sodium Levulinate, Sodium Phytate

References+

1. Azelaic Acid: Mechanisms of Action and Clinical Applications (https://www.dovepress.com/azelaic-acid-mechanisms-of-action-and-clinical-applications-peer-reviewed-fulltext-article-CCID) — Confirms azelaic acid is a naturally occurring saturated dicarboxylic acid (a true acid, not a derivative) with antibacterial, anti-keratinizing, antioxidant and anti-inflammatory mechanisms, and that it is FDA-approved for papulopustular rosacea. 2. Efficacy of Treatments in Reducing Inflammatory Lesion Count in Rosacea: A Systematic Review (https://journals.sagepub.com/doi/10.1177/12034754241253195) — Systematic review of 43 trials showing azelaic acid efficacy at the strengths used in clinical research (15% and 20%), supporting that a 15% version is closer to the concentrations the actual studies used than a 10% product. 3. Oatmeal in dermatology: a brief review (https://ijdvl.com/oatmeal-in-dermatology-a-brief-review) — Documents that colloidal oatmeal is FDA-regulated as a skin protectant and has antioxidant and anti-inflammatory (avenanthramide) activity, supporting its inclusion to soothe an irritating active.