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Supersize Hyaluronic Acid Serum 100ml Duo
Before and after 1 use of HA Serum, showing plumper skin
Key claim from clinical and consumer trial using Hyaluronic Acid Serum
How to layer Hyaluronic Acid Serum in your routine. Step 2, Hydrate
Amount of Hyaluronic Acid Serum to apply
When to apply Hyaluronic Acid Serum
Available in 3 sizes. 30ml (60 uses), 60ml (120 uses), 100ml (180 uses)
Ingredients of Hyaluronic Acid Serum
Model applying Hyaluronic Acid Serum to her face
Model holding Hyaluronic Acid Serum

Supersize Hyaluronic Acid Serum 100ml Duo | The INKEY List

Double up on our non-tacky hydrating serum, now 3x the size!

4.7
Rated 4.7 out of 5 stars
4.7 Stars (2,299 Reviews)
£33.00 £44.00 / 2 full-size products

Extra 10% off* over £30 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.

Suitable for all skin types, it glides on and instantly melts into the skin leaving you with a hydrated, dewy base. Helping to combat dry skin, improve the appearance of fine lines and helps maintain an effective skin barrier, it’s a must-have for every skincare routine.​

Discover More about Hyaluronic Acid Serum.

Suitable for:

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

Targets:

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

Proud to be:

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

Awards & Features

Glamour
Allure 2022 Award
CEW 2023 Award
Cosmopolitan Feature

Delivery info

Standard tracked delivery (Royal Mail)

£3.99
(2-5 working days*)

FREE standard tracked delivery on orders over £30

Express tracked delivery (Royal Mail)

£5.95 (Up to 2 working days if ordered before 4pm, excluding weekends*)

FREE express tracked delivery on orders £50+

*Find out more about Delivery 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

4.7
Rated 4.7 out of 5 stars
Based on 2,299 reviews
Total 5 star reviews: 1.9k Total 4 star reviews: 293 Total 3 star reviews: 56 Total 2 star reviews: 28 Total 1 star reviews: 39
2,299 reviews
  • Ivana L.
    Verified Buyer
    Hyaluronic Acid Serum - 60ml
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Plumping, Hyperpigmentation, Puffiness, Breakouts
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    4 hours ago
    Hyaluronic acid serum

    Simply love it... Skin is very hydrated

  • Angela A.
    Verified Buyer
    Supersize Hyaluronic Acid Serum - 100ml
    Reviewing
    Supersize Hyaluronic Acid Serum - 100ml
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Oiliness, Blackheads
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    4 hours ago
    My favourite

    I can't do without it anymore. It's different than other Hyaluric Acid serums because it doesn't stick and doesn't leave any film on the skin.

    It has become my favorite step in my skincare routine.

  • Desiree
    Verified Buyer
    Supersize Hyaluronic Acid Serum - 100ml
    Reviewing
    Supersize Hyaluronic Acid Serum - 100ml
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Hyperpigmentation, Dryness, Acne Scars, Under Eye Circles, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    11 hours ago
    Best serum ever!

    It leaves my skin feeling so hydrated & soft. I don't know why it took me so long to find this product but,I'm so glad I have. I also love the super size bottle. More bang for your buck. Absolutely love it.

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