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Supersize Hyaluronic Acid Serum - 100ml
Key benefits of Hyaluronic Acid Serum
Statistic from clinical study of customers using Hyaluronic Acid Serum
How to layer Hyaluronic Acid Serum in your routine
Ingredients in Hyaluronic Acid Serum
How to use Hyaluronic Acid Serum
Before and after using Hyaluronic Acid Serum
3 different sizes of Hyaluronic Acid Serum bottles and usage estimate (30ml = 60 uses, 60ml = 120 uses, 100ml = 180 uses)
Model applying Hyaluronic Acid Serum to her face
Model holding Hyaluronic Acid Serum

Supersize Hyaluronic Acid Serum - 100ml | The INKEY List

Non-tacky hydrating serum for all skin types, now x3 the size!

4.7
Rated 4.7 out of 5 stars
4.7 Stars (2,768 Reviews)
£22.00 (Worth £30.00) / 100ml

FREE bestseller at cart when you spend £35*

WHAT YOU GET: A lightweight hydrating serum that delivers instant and lasting hydration, leaving your skin plump, smooth, and ready for the day.  

WHY IT WORKS: 2% Multi-Molecular Hyaluronic Acid holds up to 1000x its weight in water, delivering intense hydration across multiple layers of skin. Matrixyl™ 3000 Peptide helps to pump, firm and smooth skin.

HOW IT FEELS: Lightweight and hydrating. No greasiness, stickiness, or tackiness. 

WHEN TO USE: AM & PM. Use this moisturising serum right after your cleanse.   

Suitable for:

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

Targets:

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

Awards & Features

Glamour
Allure 2022 Award
CEW 2023 Award
Cosmopolitan Feature

The cult-favourite, hydration serum that hero that kicked off the INKEY obsession

Clinically proven to deliver instant hydration – but it doesn’t stop there clinically proven to plumps, firms, smooths and boost the efficacy of every product you layer on top – and its only £22 - its your overpriced serums worst nightmare.

  • Instantly hydrates & plumps

  • Boosts absorption of other products

  • Lightweight, non-sticky formula. Just £22

Delivery info

Standard tracked delivery (Royal Mail)

  • £3.99 or FREE on your first order & orders over £30
  • (2-5 working days*) 

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  • £5.95 or FREE on orders £50+
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Supersize Hyaluronic Acid Serum - 100ml

Supersize Hyaluronic Acid Serum - 100ml

  • • Maintains healthy, hydrated skin.
  • • Helps your other skincare work harder.
  • • Leaves skin plump & smooth.
  • • Every skin's staple serum.

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Ectoin Hydro-Barrier Serum

Ectoin Hydro-Barrier Serum

  • • Hydrates and strengthens the skin barrier in just 15 minutes*
  • • Gives bouncier and smoother skin in just 7 days*
  • • Targets signs of a compromised skin barrier.
  • • Perfect for dry, dull and irritated skin.

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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 2,768 reviews
Total 5 star reviews: 2.2k Total 4 star reviews: 387 Total 3 star reviews: 66 Total 2 star reviews: 29 Total 1 star reviews: 42
Reviews Summary
Customers say this serum provides excellent hydration without feeling sticky or heavy. Many reviews mention its lightweight texture and quick absorption. The serum works well under other products and makeup. Users with dry skin note significant improvements in moisture levels. While most find it effective, a few mention needing larger amounts for desired results. Regular users appreciate the larger bottle size for long-term use. Many describe it as a daily essential in their skincare routine, with several reporting years of consistent use.
2,768 reviews
  • collette s.
    Verified Buyer
    Reviewing
    Supersize Hyaluronic Acid Serum - 100ml
    I recommend this product
    Age Range 55 - 64
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Texture, Redness, Dehydration, Damaged Skin Barrier
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 days ago
    Improved Skin Texture

    You need to use another serum or protective barrier cream over this product but if you add whilst this is still wet on your skin (I use more than you need) whatever you use absorbs better on wet skin

  • Lorraine G.
    Verified Buyer
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 65+
    Skin Type Combination
    Skin Concerns Damaged Skin Barrier, Breakouts, Dehydration
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 days ago
    Excellently priced, effective hyaluronic acid serum

    I love this product and have bought several bottles now.

    It’s non greasy, light and makes my skin feel nourished.

  • Cristin
    Verified Reviewer
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Breakouts, Texture, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 days ago
    Gave my flaky skin new life!

    So this stuff is AMAZING! I don’t know why I haven’t always been using it because it’s now my cannot live without product. I have flakes around my nose and chin constantly. I started using this and I no longer have that. I actually notice a big difference if I miss a couple of days. I do live in a dry environment, so to me, this is like the moist ocean air in a bottle! My only advice, get the big one!