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Ection duo packshot
Model B&A for ectoin
How to layer routine
Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
Apply pea-sized amount
When to apply: AM & PM
Key ingredient science
Day 1 vs Day 28, showing reduced redness
Day 1 vs Day 28, showing reduced redness
Key claim statistics
Before and after 15 minutes: Instantly strengthen barrier and hydrated up to 10 surface layers deep
Model with ectoin

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 (107 Reviews)
$40.00 / 2 full-size products

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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
  • Dermatologically Tested
  • B-Corp
  • Pregnancy & Breastfeeding Safe
  • theinkeylist.com exclusive
  • Fragrance Free
  • Silicon Free

Awards & Features

Refinery29
Vogue
Grazia

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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 107 reviews
Total 5 star reviews: 85 Total 4 star reviews: 15 Total 3 star reviews: 1 Total 2 star reviews: 3 Total 1 star reviews: 3
107 reviews
  • Natalie H.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Normal
    Skin Concerns Fine Lines and Wrinkles, Plumping, Under Eye Circles, Texture
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    11 minutes ago
    Such a difference.

    This serum has made such a big difference to my skin in such a short time. My skin feels comfortable and soft immediately after application, and this feeling stays with me all day, unlike with other products I've tried. I've already repurchase so that I don't run out.

  • Tova E.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Breakouts, Texture, Dryness, Under Eye Circles, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    16 hours ago
    Amazing

    It's like the hyaluronic serum....but better. My skin feels so comfortable with just a drop every morning and evening.

  • Craig R.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Breakouts, Oiliness, Blackheads, Redness, Acne Scars
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    20 hours ago
    Great product

    Been using for nearly two weeks and noticed my skin has been smoother, less breakouts and pores are looking smaller and facial redness is less and less

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