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Ectoin Hydro-Barrier Serum Duo hero
Model b&a after using ectoin
How to layer in your routine
Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
When and how to apply: AM, PM Pea-sized amount
Key ingredient science
Clinically proven to hydrate and strengthen barrier in 15 mins
Model with serum

Ectoin Hydro-Barrier Serum Duo | The INKEY List

Double up on your hydration and skin barrier strengthening

4.6
Rated 4.6 out of 5 stars
4.6 Stars (131 Reviews)
$24.00 $30.00 / 2 full-size products

VALENTINE'S 20% OFF*! Limited time only.

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 defenses. 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 optimize 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 aging 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
  • Dermatologically Tested

Awards & Features

Refinery29
Vogue
Grazia

Delivery info

Standard tracked shipping

$5.95
Free on orders over $35

Express tracked shipping

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

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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
4.6
Rated 4.6 out of 5 stars
Based on 131 reviews
Total 5 star reviews: 102 Total 4 star reviews: 18 Total 3 star reviews: 4 Total 2 star reviews: 4 Total 1 star reviews: 3
131 reviews
  • Jennifer D.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Fine Lines and Wrinkles, Under Eye Circles, Redness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 hours ago
    Cured my dryness!!!

    I had tried everything but this serum finally cured my winter dryness! I’m much less red sand have no dry patches.

  • Karen D.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Combination
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Hydro Barrier Serum

    Fabulous Product feels Super on your skin

  • Jacqueline M.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 65+
    Skin Type Combination
    Skin Concerns Dehydration, Dryness, Texture, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    Yesterday
    Another serum

    Nothing particularly great. Pleasant serum

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