Ectoin Hydro-Barrier Serum on black shelf

Side-by-side close-ups of a person's face labeled 'Before' and '15 Minutes Later.' The left shows matte skin with 25% hydration. The right shows visibly hydrated, glowing skin with 83% hydration

How to layer: How to layer in your routine: Clean, Hydrate, Treat, Moisturize, SPF

Product image of Ectoin Hydro-Barrier Serum with water splashes. Text states it’s clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people

Diagram highlighting key skincare ingredients: 2% Ectoin for hydration, 2.5% Hyaluronic Acid for deep moisture, and 1% Barrier Blend with Ceramides for protection

Side-by-side comparison of skin on Day 1 vs. Day 28, showing reduced redness and improved texture

Product image of Ectoin Hydro-Barrier: Clinically proven to hydrate & strengthen skin barrier in 15 minutes* *Clinical study of 31 people

Instantly strengthens the barrier and hydrated up to 10 surface layers deep

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Serums /
Ectoin Hydro-Barrier Serum

Ectoin Hydro-Barrier Serum | The INKEY List

Hydrates whilst supporting and strengthening the skin’s barrier

$15.00 / 30ml

Buy 2 get one FREE! Use code 3FOR2

Free shipping on your first order!

Worth 75 Points

WHAT YOU GET: An all-year round deep hydration essential. This dual-action ectoin serum deeply hydrates + strengthens the skin barrier to combat environmental stressors like heat, aircon, pollution and sun.

WHY IT WORKS: 2% Ectoin acts as a natural hydrator and barrier stabiliser, helping to calm irritation and prevent moisture loss. Multi-Molecular Hyaluronic Acid restores skin’s moisture barrier from the outside in - even in harsh conditions.

HOW IT FEELS: Lightweight, silky and non-tacky. Melts into skin for instant hydration and all-day comfort.

WHEN TO USE: Use AM and PM after cleansing and before moisturiser. Perfect serum for dry skin & for layering into your everyday skincare and makeup routine.

Suitable for:

All skin types
Sensitive Skin
Pregnancy & Breastfeeding

Targets:

Dehydrated skin
Compromised skin barrier
Dryness
Flakiness
Dullness

How to use

Use AM and PM. Apply a pea-sized amount of this skin barrier repair serum to cleansed skin, before any other serums

Follow with

Treatments → moisturizer.

Finish with SPF in your AM routine.

INKEY Tip

Layering more than one serum? Apply this hydrating serum first for max absorption.

Heads up

When adding new products to your skincare routine, we always recommend patch testing. Learn more here.

Storage

Store in a cool, dry place (15–25°C). Keep out of direct sunlight. Avoid eyes. For external use only. Keep out of reach of children.

Key Claims

Clinically proven to hydrate + strengthen the barrier in 15 minutes*
Visibly restores bounce in 3 days *
Visibly improves 5 signs of a compromised skin barrier**

Clinical study of 31 people*

4-week clinical study of 26 people**

Ingredients

2% Ectoin (Hydration + Barrier) : Hydrates while supporting and strengthening the skin barrier.
2.5% Multi-Molecular Hyaluronic Acid (Hydration): 4 types of Hyaluronic Acid for deep, multi-level hydration.
1% Barrier Blend (Barrier): Includes three Ceramides to help protect and strengthen the skin's barrier

Aqua (Water / Eau), Propanediol, Caprylic/Capric Triglyceride, Coconut Alkanes, Ectoin, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate, Maltodextrin, Phenoxyethanol, Sodium Stearoyl Glutamate, Panthenol, Cetearyl Alcohol, Sclerotium Gum, Xanthan Gum, Glyceryl Stearate, Jojoba Esters, Coco-Caprylate/Caprate, Ethylhexylglycerin, Sodium Citrate, Helianthus Annuus (Sunflower) Seed Wax, Citric Acid, Polyglyceryl-10 Stearate, Avena Sativa (Oat) Kernel Extract, Glycerin, Leuconostoc/Radish Root Ferment Filtrate, Triethyl Citrate, Pentylene Glycol, Polyglyceryl-6 Behenate, Sodium Hyaluronate Crosspolymer, Ceramide NP, Hyaluronic Acid, Ceramide AP, Cholesterol, Phytosphingosine, Behenic Acid, Sodium Levulinate, Polyglycerin-3, Potassium Sorbate, Sodium Cetearyl Sulfate, Ceramide EOP.

FAQs

WHEN DO I USE ECTOIN HYDRO-BARRIER SERUM? Use first after cleansing, AM and PM. Follow with treatments, moisturizer, and SPF in the morning.

DO I NEED HYALURONIC ACID TOO? Not necessarily. Ectoin Serum hydrates up to 10 layers deep. You can use both, or alternate AM/PM. Hydration overload = totally fine.

CAN I LAYER IT WITH OTHER PRODUCTS? Yes - it plays well with all actives, AM and PM.

IS IT SUITABLE FOR SENSITIVE SKIN? Yes. Clinically proven for all skin types, including sensitive.

IS IT NON-COMEDOGENIC? Yes. Oil-free and won’t clog pores.

WHAT IS THE SKIN BARRIER + WHY DOES IT MATTER? It’s your skin’s outer layer - keeps good stuff in and irritants out. A healthy barrier = calm, hydrated, happy skin.

WHY HYDRATION + BARRIER SUPPORT TOGETHER? They work hand-in-hand. No hydration = weak barrier. Weak barrier = no hydration. This serum targets both at once.

CAN I APPLY MAKEUP OVER IT? Yes. Wait 30–60 seconds before applying makeup to avoid pilling.

DOES IT HAVE SPF? No - follow with SPF in the morning.

WHEN WILL I SEE RESULTS? Give it up to 6 weeks. Consistency is key - more isn’t better, just be regular with it.

IS IT VEGAN? Yes! Certified by The Vegan Society.

IS IT SAFE FOR PREGNANCY/BREASTFEEDING? Yes.

CAN I USE THIS WITH PRESCRIPTION PRODUCTS? Check with your doctor first.

WHAT’S THE PH LEVEL? pH 5.5–6.8

No BS Skincare

From INCI to INKEY: Making the Unknown, Known

Every skincare product has an ingredients list.  We’re here to make it clear. What’s inside. How it works. Why you need it. We reveal the science, the truth, and the best ways to use it. Effective formulas. Straight talk. Real results. Knowledge empowers us.

We are B CORP. Our products are formulated with responsibly sourced ingredients, and packaged with 100% recyclable materials. Skin needs love, but so does our planet.

Carbon Net-Zero. All our emissions are offset annually through planet friendly projects with a focus on education.

Approved under the Cruelty Free International Leaping Bunny programme.

100% of our packaging is recyclable. Learn how to recycle your INKEY List products.

Certified by The Vegan Society

This product is;

Dermatologically tested

Clinically tested

Fragrance-free

Alcohol-free

Silicon-free

Oil-free

Lactose-free

Paraben-free

Pregnancy & breastfeeding safe

Awards & Features

Shipping info

Standard tracked shipping

$5.95 or FREE on your first order & orders over $35
(2-5 business days*)

Express tracked shipping

$15
(2-3 business days*, when ordered before 3pm EST)

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