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Supersize Hyaluronic Acid Serum 100ml Duo
Available in 3 sizes. 30ml (60 uses), 60ml (120 uses), 100ml (180 uses)
Before and after 1 use of HA Serum, showing plumper skin
How to layer Hyaluronic Acid Serum in your routine. Step 2, Hydrate
Key claim from clinical trial of using Hyaluronic Acid Serum
Amount of Hyaluronic Acid Serum to apply
When to apply Hyaluronic Acid Serum
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 (2,528 Reviews)
£35.20 £44.00 / 2 full-size products
Revive your complexion and go BIG on hydration with our award-winning Hyaluronic Acid Serum—now 3x bigger and in a duo for even more of the powerful formula you know and love.

This fast-absorbing, non-tacky serum works across multiple layers of the skin to lock in moisture, restoring your skin's plumpness and smoothness while visibly reducing the appearance of fine lines. Perfect for all skin types, it glides on effortlessly and instantly melts into the skin, leaving you with a hydrated, dewy base.

Ideal for combating dry skin, improving the appearance of fine lines, and maintaining a strong skin barrier, this must-have serum is a game-changer for any skincare routine.

This duo includes: 2x Hyaluronic Acid Serum (100ml)

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
FREE
on orders over £30
(2-5 working days*)

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+

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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 2,528 reviews
Total 5 star reviews: 2.1k Total 4 star reviews: 334 Total 3 star reviews: 61 Total 2 star reviews: 28 Total 1 star reviews: 41
2,528 reviews
  • Leilani D.
    Verified Buyer
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Skin Type Combination
    Skin Concerns Plumping, Fine Lines and Wrinkles, Under Eye Circles, Puffiness
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    17 hours ago
    Hyaluronic Acid Serum

    I have only been using this serum twice a day for 2 weeks and it is too early to report any significant changes

    to my skin. The serum absorbs well into the skin and is not sticky or fragrant.

  • Rachael M.
    Verified Buyer
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 55 - 64
    Skin Type Dry
    Skin Concerns Fine Lines and Wrinkles, Dehydration, Redness, Acne Scars, Texture
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    19 hours ago
    Great product

    Very nice serum that soaks in straight away, lovely for layering and no breakouts on my skin

  • Mark
    Reviewing
    Supersize Hyaluronic Acid Serum - 100ml
    I recommend this product
    Rated 5 out of 5 stars
    22 hours ago
    5 Stars

    Loving this product, it really works.

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