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Formulation Audit · The INKEY List · Azelaic Acid Serum · $13 USD

Azelaic Acid Serum (10%)

Hidden Gem INCI Ledger ↗ Acquire ($13) ↗ Affiliate link — labelled partner placement
Skin Suitability
Rosacea, PIE / PIH, melasma, sensitive acne-prone skin
Chemical Equivalent
Naturium Azelaic Topical Acid 10% (~$20 — potassium azeloyl diglycinate + niacinamide, gentler but not free azelaic acid)
Molecular Incompatibilities
Silica Spicules (Reedle Shot) · High-strength AHA (same night)
Creator Hype
68/100
Buyer Efficacy
84/100

Section V · Regimen Clash Check

Will Azelaic Acid Serum (10%) Clash With Your Routine?

Add the rest of your routine after The INKEY List Azelaic Acid Serum (10%) and run the check — it cross-examines retinoids, acids, vitamin C, spicules and occlusives, privately in your browser.

City
Clinic Preference
Or try a sample routine:

Empirical Buyer Synthesis

What Buyers Actually Report

[r/SkincareAddiction] [r/Rosacea]: A low-cost free azelaic acid serum (marketed at 10%) for post-inflammatory erythema, rosacea bumps and melasma support. Mild tingling in the first two weeks is common. Note that Naturium's 'Azelaic Topical Acid 10%' uses potassium azeloyl diglycinate, a gentler derivative rather than free azelaic acid.

Verbatim INCI Composition

Full Ingredient List

Aqua (Water/Eau), Azelaic Acid, Propanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Allantoin, Glycerin, Acacia Senegal Gum, Xanthan Gum, Ethylhexylglycerin, Polysorbate 60, Sorbitan Isostearate, Sodium Hydroxide, Polylysine

Source: incidecoder.com. Check the pack — formulas change.

Section V · Compare

Compare Against Peer Formulations

Azelaic Acid Serum (10%) beside the closest formulations in the index — same active family first, then the nearest related one — with a routine-conflict and washout summary.

Compare with 2 peers →

Field Notes

Frequently Asked Questions

Is The INKEY List Azelaic Acid Serum (10%) worth it?

Beauty.net verdict: Hidden Gem. Creator hype 68/100 against buyer efficacy 84/100. [r/SkincareAddiction] [r/Rosacea]: A low-cost free azelaic acid serum (marketed at 10%) for post-inflammatory erythema, rosacea bumps and melasma support. Mild tingling in the first two weeks is common. Note that Naturium's 'Azelaic Topical Acid 10%' uses potassium azeloyl diglycinate, a gentler derivative rather than free azelaic acid. Best for: Rosacea, PIE / PIH, melasma, sensitive acne-prone skin.

What should I not mix with The INKEY List Azelaic Acid Serum (10%)?

Silica Spicules (Reedle Shot) High-strength AHA (same night) Run your full routine through the Regimen Clash Check to catch other conflicts.

What is a cheaper dupe or chemical equivalent for The INKEY List Azelaic Acid Serum (10%)?

Naturium Azelaic Topical Acid 10% (~$20 — potassium azeloyl diglycinate + niacinamide, gentler but not free azelaic acid) Compare the INCI lists — a shared hero active matters more than the brand.