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Ectoin Hydro-Barrier Serum Duo hero
Close-up of a woman's face with text highlighting skincare benefits of using. Ectoin Hydro-Barrier Serum
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How to layer Ectoin Hydro-Barrier Serum in your routine
Close-up of a person's face with skincare product, text about skin barrier restoration from a clinical study of customers using Ectoin Hydro-Barrier Serum
Ingredients in Ectoin Hydro-Barrier Serum
How to use Ectoin Hydro-Barrier Serum
Before and after comparison of skin after using Ectoin Hydro-Barrier Serum
Woman applying Ectoin Hydro-Barrier Serum to her face with a white background
Model with ectoin serum on skin
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Ectoin Hydro-Barrier Serum Duo

Hydrates whilst supporting and strengthening the skin’s barrier

4.5
Rated 4.5 out of 5 stars
4.5 Stars (353 Reviews)
$28.50 $30.00 / 2 full-size products

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 moisturizer. Perfect serum for dry skin & for layering into your everyday skincare and makeup routine.


This Duo contains x2 Ectoin Hydro-Barrier Serum (30ml)

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

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

Awards & Features

  • Grazia

Shipping info

Last order dates for Christmas Shipping

  • Order by December 20th (Express shipping)

Standard tracked shipping

  • $5.95
  • FREE on orders over $35
  • (2-5 business days*)

Express tracked shipping

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

*Find out more about shipping here.

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  • Before and after showing results of Ectoin Hydro-Barrier Serum Duo
    "Magic Potion! My menopausal skin crisis happened just as this product was launched. My skin was suddenly reacting to products I had used for months/years. It was red, dry, flaky and thick. I took a chance and bought the Ectoin Hydro-Barrier Serum to see if it would help. It did an amazing job of calming my skin."

    Bridget

  • Before and after showing results of Ectoin Hydro-Barrier Serum Duo
    "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 showing results of Ectoin Hydro-Barrier Serum Duo
4.5
Rated 4.5 out of 5 stars
Based on 353 reviews
Total 5 star reviews: 258 Total 4 star reviews: 54 Total 3 star reviews: 17 Total 2 star reviews: 11 Total 1 star reviews: 13
Reviews Summary
Customers say this serum is deeply hydrating and makes skin feel soft, smooth, and plump. Many find it lightweight yet effective, absorbing quickly without leaving a greasy residue. Users with sensitive or dry skin appreciate its calming properties and ability to strengthen the skin barrier. The serum creates a glowing, "glass skin" effect and works well under makeup. Several customers mention it helps repair damaged skin barriers and reduces redness. Common concerns include a medicinal smell that some find unpleasant, occasional pilling when layered with other products, and pump dispensing issues. A few users with oily skin note it can feel too heavy by day's end.
353 reviews
  • Tolulope
    Reviewing
    Ectoin Hydro-Barrier Serum
    I do not recommend this product
    Rated 1 out of 5 stars
    Yesterday
    1 Star

    Best barrier product

  • Lauren S.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I do not recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Blackheads, Under Eye Circles, Breakouts
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1-3 weeks
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 2 out of 5 stars
    3 days ago
    Okay

    I haven’t used this much as it makes my other skincare and make up pill. I can only use this at night so not haven’t much of an effect

  • Denise H.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Redness, Damaged Skin Barrier, Under Eye Circles, Plumping, Fine Lines and Wrinkles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    6 days ago
    Lovely

    Lovely serum with lightweight feel put on first before any other serum or cream makes skin look and feel good