The Ordinary
Soothing & Barrier Support SerumThe Inkey List
10% Azelaic Acid Serum for Redness ReliefA serum built around Niacinamide and Centella asiatica, for barrier repair and smoothing.
A serum built around Azelaic acid, for pollution defence and hydration.
Brand price
USD 15.30 · checked 25 Sept 2026 · brand's site
Brand price
USD 20.00 · checked 26 Sept 2026 · brand's site
At a Glance
They come out differently on EU-allergen-free and Pore-clogger-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Centella asiatica (Cica)3
Centella asiatica (cica), used to calm irritation.
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Anhydroxylitol, Propanediol, Stearic Acid, Tocopherol, Xylitol, Xylitylglucoside
Barrier Repair10
Strengthens and restores the skin's natural barrier.
Brassica Campestris Sterols, Cetearyl Alcohol, Ethyl Linoleate, Hexyldecanol, Isodecyl Neopentanoate, Niacinamide, Sphingolipids, Stearic Acid, Tocopherol, Xylitol
Reduces Irritation4
Eases discomfort and supports skin resilience.
Redness Reducing5
Soothes visible redness and calms irritation.
Asiatic Acid, Asiaticoside, Bisabolol, Madecassic Acid, Niacinamide
Concerns
May Worsen Seborrheic Dermatitis10
May feed the yeast involved in seborrheic dermatitis.
Cetearyl Alcohol, Ceteth-20 Phosphate, Cetylhydroxyproline Palmitamide, Dicetyl Phosphate, Ethyl Linoleate, Hexyldecanol, Isoceteth-20, Phospholipids, Sphingolipids, Stearic Acid
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
Emollient
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Emollient
2 / 1
- Fatty alcohol
- Fatty alcohols (Malassezia)
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Humectant
Humectant
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising
Fragrance
Ethylhexylglycerin (in both products)
Skin Conditioning
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aqua
Solvent
Propanediol
Solvent, Viscosity Controlling
Propanediol is the organic compound that conforms to the formula
Learn more about Propanediol →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →Sodium Hydroxide
Buffering, Denaturant
Sodium hydroxide
Learn more about Sodium Hydroxide →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →
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