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Supersize Hyaluronic Acid Serum 100ml Duo on a shelf
Available in 3 sizes: 30ml, 60ml and 100ml
Before and after results using Supersize Hyaluronic Acid Serum Duo
How to layer Supersize Hyaluronic Acid Serum in your routine: Step 2, hydrate
Hyaluronic Acid Serum key claims
Amount to apply: pea-sized amount
When to apply: AM and PM
Supersize Hyaluronic Acid Serum ingredients
Model holding a Supersize Hyaluronic Acid Serum 100ml

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 (2,600 Reviews)
$47.50 $50.00 / 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:

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

Proud to be:

  • Carbon Net-Zero
  • Cruelty Free
  • Vegan
  • Recyclable
  • B-Corp
  • theinkeylist.com exclusive
  • Pregnancy & Breastfeeding Safe

Awards & Features

Glamour feature
Allure 2022 award
CEW Award 2023
cosmopolitan

Shipping info

Standard tracked shipping

  • $5.95 or FREE on your first order & orders over $35
  • (2-5 business days*)

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  • $15
  • (2-3 business days*, when ordered before 3pm EST)

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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 2,600 reviews
Total 5 star reviews: 2.1k Total 4 star reviews: 355 Total 3 star reviews: 66 Total 2 star reviews: 27 Total 1 star reviews: 42
Reviews Summary
Customers say this serum provides excellent hydration and absorbs quickly into the skin. Many reviews mention its lightweight, non-sticky texture that works well under other skincare products. The serum leaves skin feeling plump and soft throughout the day. While most users report positive experiences with long-term use, some note they need more product to achieve desired results. Common feedback includes appreciation for the larger bottle size and value for money. Reviews highlight its effectiveness in different seasons, though some mention needing additional products during colder months.
2,600 reviews
  • Alba R.
    Verified Buyer
    Reviewing
    Hyaluronic Acid Serum - 30ml
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Redness, Hyperpigmentation, Fine Lines and Wrinkles, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    20 hours ago
    Seems to work

    I like the feeling on my skin after applying, I just wished the content was more, or the price lower.

  • User
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Plumping, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    one of the nicest serums ive tried

    this hydrated my skin so well and smth abt it just feels so much better quality than anything ive tried before. this also works well with all of my other skincare and makeup products. recommend!

  • Seema N.
    Verified Buyer
    Reviewing
    Hyaluronic Acid Serum - 60ml
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Dryness
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    Yesterday
    Aanrader

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