Medik8
Hydr8 B5™The Inkey List
Ectoin Hydro-Barrier SerumA serum built around Panthenol and Hyaluronic acid, for hydration and barrier repair.
A serum built around Hyaluronic acid and Panthenol, for barrier repair and hydration.
Brand price
GBP 45.00 · checked 8 Oct 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 and Fungal-acne-safe; those rows are shaded. Tap any answer to see why.

Key Ingredients

Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
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

No concerns found
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

Panthenol (in both products)
Skin Conditioning
0 / 0
- Panthenol (provitamin B5)
- Barrier Repair
- Hydrating
- Reduces Irritation
Skin Conditioning
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
Panthenol
Antistatic, Hair Conditioning, Skin Conditioning
Panthenol is panthenol (provitamin B5).
Learn more about Panthenol →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Ethylhexylglycerin
Deodorant, Skin Conditioning
Ethylhexylglycerin is the organic compound that conforms to the formula
Learn more about Ethylhexylglycerin →Citric Acid
Buffering, Chelating, Fragrance
Citric Acid is an AHA.
Learn more about Citric Acid →
Similar Comparisons
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The Inkey List
Ectoin Hydro-Barrier Serum

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Medik8
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The Inkey List
Ectoin Hydro-Barrier Serum

The Inkey List
Exosome Hydro-Glow Complex