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Ectoin Hydro-Barrier Serum Duo
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How to layer routine
Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
Ectoin Hydro-Barrier Serum Duo
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Key claim statistics for ectoin Hydro-Barrier serum
Model with ectoin serum on skin

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 (251 Reviews)
£28.50 £30.00 / 2 full-size products
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
  • B-Corp
  • Fragrance Free
  • Silicon Free
  • Alcohol Free
  • Pregnancy & Breastfeeding Safe

Awards & Features

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Delivery info

Standard tracked delivery (Royal Mail)

  • £3.99 or FREE on your first order & orders over £30
  • (2-5 working days*) 

Express tracked delivery (Royal Mail)

  • £5.95 or FREE on orders £50+
  • (Up to 2 working days if ordered before 4pm, excluding weekends*)

*Find out more about Delivery 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 251 reviews
Total 5 star reviews: 179 Total 4 star reviews: 41 Total 3 star reviews: 11 Total 2 star reviews: 9 Total 1 star reviews: 11
Reviews Summary
Customers say this serum has a light, silky texture that absorbs quickly into the skin. Many reviews mention noticeable improvements in skin hydration and texture within weeks of use. While most find it soothing and moisturizing, some note it can pill under makeup. Reviews are mixed on its effectiveness compared to other hydrating serums, with some reporting exceptional results and others seeing minimal difference. Common feedback includes its non-greasy feel and how it layers with other skincare products. Some users mention it works particularly well for sensitive skin, while others report it can feel tight or drying.
251 reviews
  • Aditi B.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum Duo
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Breakouts, Oiliness, Hyperpigmentation
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    11 hours ago
    Worth it!

    Such a pleasant surprise. A very nice product which is really hydrating, leaves the skin feeling tight and rejuvenated as well. Highly recommend!

  • Leanne W.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Blackheads, Oiliness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Excellent product

    Makes my face feel so hydrated absolutely love this

  • Madison D.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I do not recommend this product
    Age Range 18 - 24
    Skin Type Oily
    Skin Concerns Oiliness, Breakouts, Acne Scars, Blackheads
    Rated 1 out of 5 stars
    Yesterday
    Feels nice but too many breakouts for me

    My sensitive skin girlies, approach with caution! I have an unusual amount of new whiteheads anytime I use this serum, morning or night. I wish it produced results that match the way this feels on my skin!

    IU Profile picture for INKEY UK
    INKEY UK
    Yesterday

    Thank you so much for taking the time to share your feedback, Madison.

    We're truly sorry to hear about your experience with our Ectoin Hydro-Barrier Serum and the breakouts you've encountered. It's particularly troubling to hear that despite the pleasant texture, you're experiencing unusual whiteheads when using the product - this is absolutely not the experience we want any of our customers to have. While we formulate our products to be suitable for sensitive skin, we understand that everyone's skin can react differently. We take your feedback very seriously, and we'd love for you to reach out to our askINKEY Team, as we would greatly appreciate the opportunity to understand your experience further and explore how we can make this right for you 🖤