The Inkey List
10% Azelaic Acid Serum for Redness ReliefThe Inkey List
Ectoin Hydro-Barrier SerumA serum built around Azelaic acid, for pollution defence and hydration.
A serum built around Hyaluronic acid and Panthenol, for barrier repair and hydration.
Brand price
USD 20.00 · checked 26 Sept 2026 · brand's site
Brand price
USD 17.00 · checked 26 Sept 2026 · brand's site

At a Glance

They come out differently on Sulfate-free; that row is shaded. Tap any answer to see why.

Key Ingredients

Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Ceramide3
Skin-identical lipids that hold the barrier together.

Benefits

Hydrating13
Boosts hydration and relieves dry, tight skin.
Caprylic/Capric Triglyceride, Ceramide AP, Ceramide EOP, Ceramide NP, Ectoin, Glycerin, Hyaluronic Acid, Jojoba Esters, Panthenol, Polyglycerin-3, Propanediol, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer
Barrier Repair15
Strengthens and restores the skin's natural barrier.
Avena Sativa Kernel Extract, Caprylic/Capric Triglyceride, Ceramide AP, Ceramide EOP, Ceramide NP, Cetearyl Alcohol, Cholesterol, Coco-Caprylate/Caprate, Coconut Alkanes, Glycerin, Glyceryl Stearate, Helianthus Annuus Seed Wax, Jojoba Esters, Panthenol, Phytosphingosine
Reduces Irritation3
Eases discomfort and supports skin resilience.

Concerns

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.
May Worsen Seborrheic Dermatitis15
May feed the yeast involved in seborrheic dermatitis.
Behenic Acid, Ceramide AP, Ceramide EOP, Ceramide NP, Cetearyl Alcohol, Coco-Caprylate/Caprate, Coconut Alkanes, Glyceryl Stearate, Helianthus Annuus Seed Wax, Jojoba Esters, Phytosphingosine, Polyglyceryl-10 Stearate, Polyglyceryl-6 Behenate, Sodium Cetearyl Sulfate, Sodium Stearoyl Glutamate
May Worsen Keratosis Pilaris2
May clog follicles or strip skin prone to keratosis pilaris.

Ingredients Side-by-side

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion Stabilising
Fragrance
Ethylhexylglycerin (in both products)
Skin Conditioning
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Skin Conditioning
Emulsifying
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
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 →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →Maltodextrin
Absorbent, Binding, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning
Maltodextrin
Learn more about Maltodextrin →
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