Does Hyaluronic Acid Serum Actually Dehydrate Your Skin?

Myth Busted
We tested the viral claim that this cult serum can pull moisture *out* of your skin instead of adding it.
Expert Analysis · Honest Reviews · Real Results
1.💧The Dehydration Drama

Everyone’s freaking out that hyaluronic acid can suck moisture *out* of your skin. So I tested the theory on the most popular one.

The fear is real if you live in a dry climate — the serum could pull water from your skin instead of the air. A legit skincare plot twist.

2.The Cult Serum

It’s The Ordinary Hyaluronic Acid 2% + B5. $8. I bought it because the internet said it was a desert — or a sponge.

1

Texture

Slightly thicker than water — has a tiny bit of slip.

2

Scent

None. Zero. It smells like the inside of a lab beaker.

3

Packaging

The dropper is fine, but you will absolutely knock the bottle over at least once.

assorted plastic bottles on brown woven basket

Photo: Poko Skincare / Unsplash

3.🔍What’s Actually In It

It’s not just one type of HA. They use a cocktail of weights to penetrate different layers. The B5 is there for repair, not hydration.

  • Low-Molecular Weight HA: Can go deeper into skin
  • High-Molecular Weight HA: Sits on surface to plump
  • Crosspolymer HA: A moisture-binding network
  • Vitamin B5 (Panthenol): Soothes and supports barrier
Skincare serums and leaves on a neutral background.

Photo: ibnu ihza / Unsplash

4.📊Skin Feel Test

Applies like a slick gel. Absorbs in 15 seconds flat — leaves a faint, sticky film for a minute. Not a dealbreaker.

Used it in dry, winter air. The trick? My skin felt tighter if I didn’t seal it in. The myth has a kernel of truth.

💡

One Thing: Apply to damp skin. Immediately. Then lock it in with moisturizer. This is non-negotiable.
white and gold perfume bottle

Photo: Sonia Roselli / Unsplash

5.The Real Results

My skin was plumper. Lines looked softer. But it didn’t magically solve dehydration — that’s a whole routine thing.

Buy if
Your skin is normal/combo and you just need a hydration boost.
⏭️

Skip if
You live in extreme dryness and hate layering products.
💰

Worth it?
For $8, it’s a no-brainer experiment. But it’s a team player, not a solo star.
6.Final Call

It doesn’t dehydrate you — user error does. A brilliant, basic hydrator if you follow the rules.

7.5/10
A cheap, effective workhorse with instructions.
🛍️

Where to Buy: Sephora or the brand site. Buy the 30ml first to see if you like the texture.