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Supersize Hyaluronic Acid Serum - 100ml | The INKEY List

Our bestselling hydration super serum, now 3x the size!

4.7
Rated 4.7 out of 5 stars
4.7 Stars (2,168 Reviews)
£22.00 (Worth £30.00) / 100ml

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You asked, we delivered! Our award-winning #1 bestseller Hyaluronic Acid Serum is now 3x bigger. Designed with the same bestselling formula as our 30ml version, this serum helps your other skincare work harder. Clinically proven to deliver instant and lasting hydration, this non-tacky hydrating serum leaves skin feeling plump, smooth and healthy.

Formulated with 2% multi-molecular Hyaluronic Acid, this powerful moisture-binding ingredient can hold up to 1000x its weight in water, which is essential for maintaining skin hydration and plumpness. Lightweight and rapidly absorbed on contact with the skin, the combination of high and low molecular weight HA helps the serum deliver hydration across multiple layers of the skin's surface. ​

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

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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  • "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

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

    Keanu

  • "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

  • "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

  • "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

  • "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

  • "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 2,168 reviews
Total 5 star reviews: 1.8k Total 4 star reviews: 276 Total 3 star reviews: 53 Total 2 star reviews: 28 Total 1 star reviews: 39
2,168 reviews
  • bambi s.
    Verified Buyer
    Hyaluronic Acid Serum - 30ml
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Dryness, Plumping
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    8 minutes ago
    Essential

    Makes my skin feel hydrated, smooth and prepped for the rest of my skincare routine.

  • ChikiFrost
    Verified Buyer
    Hyaluronic Acid Serum - 30ml
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 16 - 18
    Skin Type Combination
    Skin Concerns Redness, Breakouts, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Worth getting!

    Made my skin visibly more plump after a few uses. very affordable too!

  • Kristen C.
    Verified Buyer
    Hyaluronic Acid Serum - 30ml
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 45 - 54
    Skin Type Dry
    Skin Concerns Redness, Texture, Fine Lines and Wrinkles, Dryness, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    LOVE!!!!

    Wonderful product! I have SUPER sensitive skin and I believe the minimal 'other' products mixed with this, is leading to positive results. Thank you for creating this product!!!!

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