25% OFF EVERYTHING! Shop now >

Get an extra 10% off* over $50 with code SURPRISE10

Bestselling Intro Routines now 35% OFF! Shop now >

Back to home page The INKEY List
Before and after using Hyaluronic Acid Serum
100ml Hyaluronic acid Serum duo
How to layer Hyaluronic Acid Serum in your routine. Step 2, Hydrate
Key claim from clinical and consumer trial using Hyaluronic Acid Serum
Amount of Hyaluronic Acid Serum to apply
When to apply Hyaluronic Acid Serum
Ingredients of Hyaluronic Acid Serum
Available in 3 sizes. 30ml (60 uses), 60ml (120 uses), 100ml (180 uses)
Model applying Hyaluronic Acid Serum to her face
Model holding Hyaluronic Acid Serum
25% OFF
Before and after using Hyaluronic Acid Serum
100ml Hyaluronic acid Serum duo
How to layer Hyaluronic Acid Serum in your routine. Step 2, Hydrate
Key claim from clinical and consumer trial using Hyaluronic Acid Serum
Amount of Hyaluronic Acid Serum to apply
When to apply Hyaluronic Acid Serum
Ingredients of Hyaluronic Acid Serum
Available in 3 sizes. 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 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 (2,071 Reviews)
$51.00 $68.00 / 2 full-size products

Extra 10% off over $50 with code SURPRISE10

Loading…

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
  • Fragrance Free

Awards & Features

Glamour
Allure 2022 Award
CEW 2O24 Award
Cosmopolitan

Delivery info

Standard tracked shipping

$6.99

FREE standard tracked shipping on orders $50+

*Find out more about shipping here.

Track the status of your parcel with
our trusted couriers

Still not sure?

Take our Skin Quiz, choose your personalized routine and get FREE products.

Take The Quiz arrow
  • 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

More Blogs arrow
4.7
Rated 4.7 out of 5 stars
Based on 2,071 reviews
Total 5 star reviews: 1.7k Total 4 star reviews: 278 Total 3 star reviews: 54 Total 2 star reviews: 26 Total 1 star reviews: 34
Write a Review (Opens in a new window)
2,071 reviews
  • K
    Verified Buyer
    Hyaluronic Acid Serum - 30ml
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    15 hours ago
    Good product

    I really enjoyed this and ended up buying a second bottle

    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 5 out of 5 stars
    Yesterday
    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
    Yesterday
    Hydrates

    hydrates well

    Was this helpful?
Reviews LoadedReviews Added

Shop Related Categories

Dehydrated Skin All Skincare Moisturizers