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Mandelic Acid 10% + HA

Sensitive SkinSerum

Mandelic Acid 10% + HA — Reddit Reviews

by The Ordinary

87nextscore9 verdicts

Updated October 17, 2026

10% mandelic acid gently brightens and smooths; a slow-start staple for sensitive skin.

What the community says

Backed by 6 studies

A 10% mandelic acid serum for gradual brightening and smoother cheeks, with hyaluronic acid adding slip. Reddit users reach for it weekly when harsher acids or tretinoin feel too aggressive, though overuse can trigger purging.

From Reddit

Backed by 15 threads from r/tretinoin, r/SkincareAddiction and 3 more.

Read the threads ↓

What people love

  • Gentle chemical-exfoliant starting point
  • Brighter skin without peeling or irritation
  • Smooths cheeks during tretinoin breaks

Watch out for

  • Purging can happen during the adjustment period
  • Needs a slow ramp-up alongside other actives

Product details

Where to buy

What the science says

  • Acne

    Not proven yet

    Few or mixed studies. This claim isn't established.

    Mandelic Acid: 1 study tested it on its own. See all 6 studies

    What the studies found
    • The one study that tested it on its own found it helped acne
    • It worked about as well as salicylic acid for mild to moderate facial acne
    • It caused fewer side effects than salicylic acid

    Studied at 10–45%this product: 10%

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

Real Reddit threads — 20 mentions across 15 threads

The Ordinary Mandelic Acid 10% + HA on Reddit, in one place — 15 threads from r/tretinoin, r/SkincareAddiction and 3 more, summarized.

1.3k

“The Ordinary Mandelic Acid 10%+HA (nights I gave my face a break from tretinoin)”

Positive

“NIGHT:”

Positive

“The products I used came from a lot of trial and error.”

Positive

“added The Ordinary Mandelic Acid once a week”

Positive

“my cheeks are smoother and calmer”

Positive

“my full routine with exact days and steps is on slide 3 since a lot of you asked.”

Positive

“Now, I use The Ordinary Mandelic Acid 10% + HA and The Ordinary Azelaic Acid Suspension 10%.”

Positive

“I don't use them at the same time, but I use each one about twice a week.”

Positive

“Cleared up my lifelong dark armpits by quitting deodorant ... alternating Mandelic and Azelaic acid from The Ordinary ...”

Positive

“use an active like Mandelic acid by the ordinary.”

Positive

“at night, once a week or twice a week in the beginning”

Positive

“in conjunction with a routine focused on moisture and cycling with actives.”

Positive

“Mandelic Acid 10% + HA - So far it's been very gentle.”

Positive

“has not caused any peeling or irritation.”

Positive

“Mandelic acid - I love this. It’s mild and doesn’t irritate but I can definitely tell my skin is brighter.”

Positive

“I also use the ordinary mandelic acid every 7-10 days”

Positive

“when I put makeup on and it’s crusty that’s how I know I’ve waited too long between chemical exfoliation”

Positive

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