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Hyaluronic Acid Serum

DehydrationSerum

Hyaluronic Acid Serum — Reddit Reviews

by The Inkey List

90nextscore6 verdicts

Updated October 16, 2026

2% multi-molecular hyaluronic acid plumps dehydrated skin; needs damp layering and moisturizer.

What the community says

Backed by 3 studies

A 2% multi-molecular hyaluronic acid serum layers best onto damp skin and boosts that tight, dehydrated feeling. It fits easily under moisturizer and other actives. In dry climates, it can feel useless without humidity or a sealing cream.

From Reddit

Backed by 6 threads from r/30PlusSkinCare, r/SkincareAddiction and 1 more.

Read the threads ↓

What people love

  • Plumps noticeably after damp-skin application
  • Layers cleanly under retinal and moisturizer
  • Cruelty-free at the same price as a competing serum

Watch out for

  • Can feel useless in dry climates without moisturizer
  • Less hydrating than competing HA serums for some users

Product details

Skin type data limited

Where to buy

What the science says vs. what Reddit says

  • Dehydration

    Some evidence

    Hyaluronic Acid: 2 studies tested it on its own. See all 3 studies

    On Reddit: At night, it’s part of one user’s go-to hydration trio. 5 mentions

    What the studies found
    • Both studies that tested it on its own found it helped dehydrated skin
    • It improved how much water the skin held more than a placebo
    • Some studies also found skin felt more elastic and looked smoother
    • No side effects were reported in one study

    Studied at 0.1%this product: 2%

Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.

Real Reddit threads — 12 mentions across 6 threads

The Inkey List Hyaluronic Acid Serum on Reddit, in one place — 6 threads from r/30PlusSkinCare, r/SkincareAddiction and 1 more, summarized.

10.8k

“PM: Double cleanse (micellar water to remove makeup then Liz Earle hot cloth cleanser), Inkey List Hyaluronic Acid Serum, Inkey List 15% Vitamin C and EGF Serum, Nivea soft moisturiser.”

Positive

“I've been layering it with a hyaluronic acid serum first, then retinal, and then moisturiser on top.”

Positive

“It could be dehydration vs hydrated skin, that can make a big difference”

Positive

“I recently switched from the Ordinary’s hyaluronic acid serum to Inkey List’s and very much like it.”

Positive

“It’s the same price and cruelty free.”

Positive

“It absorbed better into my skin and my skin actually felt hydrated and plump after.”

Positive

“AM Cerave hydrating cream to foam cleanser Inkey list Hyaluronic acid serum Dermatica 20% azelaic acid cream Inkey list omega water cream”

Positive

“PM Body shop camomile balm Cerave hydrating cream to foam cleanser Inkey list hyaluronic acid serum Dermatica 20% azelaic acid cream Cosrx snail mucin 92 cream Inkey list omega water cream”

Positive

“Wash with cerave hydrating cleanser, inkey list hyaluronic acid and leave to dry for 30 seconds, dermatica azelaic acid 20% leave to sink in for a minute, moisturise with inkey list omega water cream.”

Positive

“I have also tried the HA serum from The Inkey list....it's good, but not quite as hydrating as the other two for me.”

Positive

“Sometimes I use Peter Thomas Roth HA cloud serum and that works really well too, but a bit pricey.”

Positive

“Just some suggestions in case you decide to give HA a try. :)”

Positive

“bought The Inkey List Omega water cream , bio active ceramide moisterizer, hyaluronic acid serum and ectoin hydro barrier serum.”

Positive

“This helped heal my damaged skin barrier and help maintain hydration in my skin.”

Positive

“Here is how I resolved the problem flairup.”

Positive

“The Inkey List Hyaluronic Acid Serum”

Positive

“For the HA, if you live in a dry climate it’s not helping and it won’t until humidity is high”

Positive

“For the HA, our humidity in the UK is about 75%. I think it *is* doing something.”

Positive

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