Ectoin Hydro-Barrier Serum Duo hero
Side-by-side close-ups of a person's face labeled 'Before' and '15 Minutes Later.' The left shows matte skin with 25% hydration. The right shows visibly hydrated, glowing skin with 83% hydration
How to layer: How to layer in your routine: Clean, Hydrate, Treat, Moisturize, SPF
Product image of Ectoin Hydro-Barrier Serum with water splashes. Text states it’s 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
 Diagram highlighting key skincare ingredients: 2% Ectoin for hydration, 2.5% Hyaluronic Acid for deep moisture, and 1% Barrier Blend with Ceramides for protection
 Product image of Ectoin Hydro-Barrier: Clinically proven to hydrate & strengthen skin barrier in 15 minutes*  *Clinical study of 31 people
Model with ectoin serum on skin

Ectoin Hydro-Barrier Serum Duo | The INKEY List

Hydrates whilst supporting and strengthening the skin’s barrier

4.5
Rated 4.5 out of 5 stars
4.5 Stars (317 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 moisturiser. 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

Standard tracked shipping

  • $5.95 or FREE on your first order & 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 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 317 reviews
Total 5 star reviews: 231 Total 4 star reviews: 52 Total 3 star reviews: 13 Total 2 star reviews: 10 Total 1 star reviews: 11
Reviews Summary
Customers say this serum provides deep hydration and leaves skin feeling soft and plump. Many reviews mention improved skin texture and reduced dryness with regular use. The lightweight formula absorbs quickly, though some note it can pill under makeup. While most find it soothing for sensitive skin, a few report it didn't meet their hydration needs. Reviews frequently highlight its effectiveness for dry and reactive skin types. Common feedback includes appreciation for its smooth application and lasting moisture, though several wish for a larger bottle size.
317 reviews
  • Louise O.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum Duo
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Texture, Redness, Hyperpigmentation, Dryness, Plumping
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    12 hours ago
    HYDRATION

    A little goes a long way, fantastic product

  • SARA S.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Dryness, Blackheads
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 days ago
    Best serum ever

    Lightweight, deeply hydrating, and perfect for strengthening the skin barrier. My skin feels soothed, soft, and protected all day.

  • Bridget
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Skin Concerns Redness, Damaged Skin Barrier, Dehydration, Dryness, Puffiness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 weeks ago
    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. When I finished my first bottle, I decided to use up my old products as I hate waste. Big mistake! Within a few days, everything came back. Needless to say I'm back to the Ectoin and instantly, my skin feels calm. No burn. The photos aren't a direct before and after but show how good this has been for me overall. Amazing stuff!