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Supersize Hyaluronic Acid Serum 100ml Duo
Before and after side by side from results using Hyaluronic Acid Serum
How to layer in your routine 1. Cleanse 2. HA Serum 3. Treat 4. Eye Treatment 5. Moisturize 6. SPF
Key claim from clinical trial of using Hyaluronic Acid Serum
Amount to apply: Pea-sized amount
Apply am + pm
Key ingredients for Hyaluronic Acid Serum
Available in 3 sizes 30ml, 60 uses, 100ml 180 uses, 60ml 120 uses
Model with Hyaluronic Acid Serum on skin
Model with 100ml Hyaluronic Acid Serum
25% OFF
Supersize Hyaluronic Acid Serum 100ml Duo
Before and after side by side from results using Hyaluronic Acid Serum
How to layer in your routine 1. Cleanse 2. HA Serum 3. Treat 4. Eye Treatment 5. Moisturize 6. SPF
Key claim from clinical trial of using Hyaluronic Acid Serum
Amount to apply: Pea-sized amount
Apply am + pm
Key ingredients for Hyaluronic Acid Serum
Available in 3 sizes 30ml, 60 uses, 100ml 180 uses, 60ml 120 uses
Model with Hyaluronic Acid Serum on skin
Model with 100ml Hyaluronic Acid Serum

Supersize Hyaluronic Acid Serum 100ml Duo | The INKEY List

Double up on our non-tacky hydrating serum, now x3 the size!

4.7
Rated 4.7 out of 5 stars
4.7 Stars (2,055 Reviews)
€33,00 €44,00 / 2 full-size products

Extra 10% off over €45 with code SURPRISE10

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Revive your complexion and go BIG on hydration.

Our award-winning Hyaluronic Acid Serum serum is now 3x bigger and doubled up so you get more of the same powerhouse formula you know and love. Easily absorbed, non-tacky and working across multiple layers of the skin, it helps to lock in moisture, restoring your skin's plumpness and smoothness, while reducing the appearance of fine lines.

Discover More about Hyaluronic Acid Serum.

Suitable for:

  • All Skin Types
  • Sensitive Skin
  • Pregnancy & Breastfeeding
  • Teen Approved

Targets:

  • Fine Lines & Wrinkles
  • Dehydrated Skin
  • Damaged Skin Barrier

Proud to be:

  • Carbon Net-Zero
  • Cruelty Free
  • Vegan
  • Recyclable
  • B-Corp
  • theinkeylist.com exclusive

Awards & Features

Glamour
Allure 2022 Award
CEW 2023 award winner
Cosmopolitan

Delivery info

  • (calculated at checkout, shipping destination dependent)

  • Standard EU Tracked Shipping

  • €5.95 (2-5 business days*). FREE on orders above €45**.

  • **The following countries are subject to increased Standard Tracked Shipping rates. In addition, Express Shipping is not available to these countries.

  • €6.95 - Denmark, Finland, Switzerland, Estonia, Luxembourg - (2-5 business days*). FREE on order over €45.
  • €8.95 - Spain, Portugal, Greece, Sweden, Croatia, Bulgaria, Romania - (2-5 business days*). FREE on order over €55.
  • €11.95 - Malta, Cyprus, Iceland, Serbia, North Macedonia, Bosnia & Herzegovina, Monaco - (2-5 business days*). FREE on order over €65.

  • Express EU Tracked Shipping

  • €11.95 (up to 4 business days*, if ordered before 4pm CET on business days) 

  • Tariff or duties
  • Orders with EU shipping destinations won't be subject to any tariff or duties, however please note that there are a small number of EU and European territories that still require tariffs and duties that will need to be covered by the customer.

*Find out more about shipping here.

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  • Before and after comparison
    "I decided to try Hyaluronic Acid Serum as I'm struggling with acne dry skin from medications. I've been using it for more than a year and my skin is glowing and feels softer than ever! I would definitely recommend this product if you want change your skin for better!"

    Katarzyna

  • Before and after comparison

    "You have been a part of the past 2 years of my skincare journey. Thank you INKEY!"

    Keanu

  • Before and after comparison
    "I’ve used INKEY products religiously and my skin is just amazing! This is before I started and what it is like now. My skin's never been better!"

    Adelle

  • Before and after comparison
    "The INKEY List is the only skincare that's helped my acne-prone skin due to my polycystic ovaries". Lauren has been using Oat Cleansing Balm, Salicylic Acid Cleanser, Hyaluronic Acid Serum, Succinic Acid Treatment and Omega Water Cream since December 2022."

    Lauren

  • Before and after comparison
    "Just wanted to say I’ve been using your brand for just over a month and the products have really helped with my acne and the scarring! They are amazing and the results are incredible."

    Amy

  • Before and after comparison
    "I used the online askINKEY service and chose the Hyaluronic Acid Serum, the Succinic Acid Treatment, and the Omega Water Cream. These are my results after 3 months ❤️ "

    Chloe

  • Before and after comparison
    "Your products have helped me become so much more confident and happy in my skin!"

    Tatiana

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4.7
Rated 4.7 out of 5 stars
Based on 2,055 reviews
Total 5 star reviews: 1.7k Total 4 star reviews: 269 Total 3 star reviews: 54 Total 2 star reviews: 27 Total 1 star reviews: 37
Write a Review (Opens in a new window)
2,055 reviews
  • Mariella F.
    Verified Buyer
    Hyaluronic Acid Serum - 60ml
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Breakouts, Acne Scars, Blackheads, Hyperpigmentation
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 minutes ago
    hydrates well

    hydrates

    Was this helpful?
  • Mariella F.
    Verified Buyer
    Hyaluronic Acid Serum - 60ml
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Breakouts, Acne Scars, Blackheads, Hyperpigmentation
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    6 minutes ago
    Hydrates

    hydrates well

    Was this helpful?
  • Mariella F.
    Verified Buyer
    Hyaluronic Acid Serum - 60ml
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    11 minutes ago
    Hydrates

    Hydrates well. Use it every night.

    Was this helpful?
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