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2 bottles of ectoin on shelf
Before and after using ectoin serum
How to layer in your routine
Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
Amount to apply  - pea sized amount
Apply in the AM & PM
Key ingredients science
Ectoin B&A
Ectoin B&A 28 days
Key claim statistics
Model with ectoin serum

Ectoin Hydro-Barrier Serum Duo | The INKEY List

Double up on your hydration and skin barrier strengthening

4.5
Rated 4.5 out of 5 stars
4.5 Stars (264 Reviews)
€32,00 / 2 full-size products
from €22,40 / 2 full-size products

Insider exclusive: Sign up to get a FREE Hyaluronic Acid Serum with all orders!

Unlock double hydration and barrier repair with The INKEY List Ectoin Hydro-Barrier Serum Duo - a dual-action powerhouse that deeply hydrates while strengthening your skin’s natural defences. Clinically proven to restore skin bounce in just 3 days* and hydrate and strengthen the skin’s barrier in 15 minutes*, this ectoin serum duo works to optimise your skin’s health from the inside out.

Hydration and barrier support go hand in hand.

Ectoin Serum (2% Ectoin) – A natural skin protector that hydrates, fights signs of ageing and inflammation, and strengthens the skin barrier.

Multi-Molecular Hyaluronic Acid Serum – Works to rebuild and restore the skin’s protective barrier while deeply hydrating up to 10 surface layers deep.

Whether you’re searching for a hydrating serum for dry skin or an everyday solution for balanced, healthier skin, this duo helps to visibly improve five key signs of a compromised barrier: dullness, dryness, redness, flakiness, and slackness. With lightweight, fast-absorbing textures, these serums deliver instant, non-tacky hydration that layers seamlessly under skincare and makeup.

Suitable for:

  • All skin types
  • Barrier support and protection ​

Targets:

  • Dehydrated skin
  • Compromised skin barrier
  • Dryness
  • Flakiness
  • Dullness

Proud to be:

  • Vegan
  • Cruelty Free
  • Carbon Net-Zero
  • Clinically Tested
  • Dermatologically Tested
  • Pregnancy & Breastfeeding Safe
  • theinkeylist.com exclusive
  • B-Corp
  • Fragrance Free

Awards & Features

refinery29
Vogue
Grazia

Shipping info

Standard EU Tracked Shipping

  • €5.95**
  • FREE on your first order & over €45**
  • (2-5 business days*)

**The following countries are subject to increased Standard Tracked Shipping rates and increased FREE shipping thresholds. In addition, Express Shipping is not available to these countries.

  • €6.95 - Denmark, Finland, Switzerland, Estonia, Luxembourg - FREE on your first order & over €45
  • €8.95 - Spain, Portugal, Greece, Sweden, Croatia, Bulgaria, Romania - FREE on your first order & over €55
  • €11.95 - Malta, Cyprus, Iceland, Serbia, North Macedonia, Bosnia & Herzegovina, Monaco - FREE on your first order & over €65.

Express EU Tracked Shipping

  • €11.95
  • (up to 4 business days*, if ordered before 4pm CET on business days) 

Tariff or duties

  • Orders with EU shipping destinations won't be subject to any tariff or duties, however please note that there are a small number of EU and European territories that still require tariffs and duties that will need to be covered by the customer.

*Find out more about shipping here.

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  • Before and after comparison
    "I was actually shocked with the results myself it kept improving and I started seeing the difference after a week and it just kept getting better I can’t wait for the official launch I’m gonna buy more products from inkey I’m really impressed with the result, this product is a part of my daily morning and night skincare routine and I’m so thankful for the opportunity you guys gave me to test this out"

    Sumbal

  • Before and after comparison
4.5
Rated 4.5 out of 5 stars
Based on 264 reviews
Total 5 star reviews: 188 Total 4 star reviews: 45 Total 3 star reviews: 11 Total 2 star reviews: 9 Total 1 star reviews: 11
Reviews Summary
Customers say this serum provides noticeable hydration and leaves skin feeling soft and smooth. Many reviews mention its lightweight texture and quick absorption. While most find it effective for moisturizing, some note it can pill under makeup. Common feedback includes improved skin texture and plumpness. Reviews are mixed on its compatibility with sensitive skin - some find it soothing while others report breakouts. Users particularly appreciate its performance during winter months. Some mention it works best when applied to damp skin.
264 reviews
  • Nat C.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Dehydration
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 minutes ago
    True hydro-barrier

    As soon as applied, my dehydrated/dry skin feels very comfortable, more hydrated and bouncy thanks to the hydro-barrier serum.

  • Jasmine C.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Dryness, Fine Lines and Wrinkles, Dehydration
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    6 days ago
    Serums

    Feels gentle on the skin, doesn’t flare up my eczema.

  • Maria Eva Maccione S.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Texture, Hyperpigmentation, Fine Lines and Wrinkles, Under Eye Circles, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    6 days ago
    Absolutely wonderful!!!!

    I have been using it for a 2 months now and my skin feels and looks more glowy and hydrated. I combine it with the peptides cream.