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Ingredients in Mandelic Acid Treatment
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20% OFF
Tube of The Inkey List Mandelic Acid Treatment on a white background
Close-up of a smiling person's face with text about Mandelic Acid Treatment benefits.
Text indicating that 94% of participants agreed dark spots were significantly reduced after a breakout, with a close-up of a person's eye.

How to layer Mandelic Acid Treatment in your routine. Step 1: Cleanse. Step 2: Hyaluronic Acid Serum. Step 3: Mandelic Acid Treatment. Step 4: Eye Treatment. Step 5: Moisturizer. Step 6: SPF

Close-up of a person's face with text about dark spot reduction after using Mandelic Acid Treatment, on a white background.
Step-by-step guide to layering Mandelic in a skincare routine with text overlay on a beige background
Ingredients in Mandelic Acid Treatment
Hand holding a tube of mandelic acid treatment with application instructions.
Before and after comparison of skin with acne on a white background

Mandelic Acid Treatment

Helps reduce the appearance of post-breakout marks

4.4
Rated 4.4 out of 5 stars
4.4 Stars (293 Reviews)
$11.20 $14.00 / 15ml

20% off end of year sale! Exclusions apply.

What you get: A gentle but effective mandelic acid treatment that helps reduce hyperpigmentation and fade post-breakout marks.

Why it works: Powered by 10% Mandelic Acid (AHA) and 0.1% Retinol to gently exfoliate and boost cell turnover. Glycerin adds hydration to keep skin balanced and comfortable.

How to feel: Lightweight, non-greasy.

When to use: PM only, after cleansing and hydrating. Apply mandelic acid serum to targeted areas, then follow with serums and moisturiser.

Suitable for:

  • All skin types
  • Sensitive skin

Targets:

  • Acne scars
  • Hyperpigmentation
  • Uneven skin tone

Awards & Features

  • Allure Award
  • Sheerluxe Award

Shipping info

Last order dates for Christmas Shipping

  • Order by December 20th (Express shipping)

Standard tracked shipping

  • $5.95
  • FREE on orders over $35
  • (2-5 business days*)

Express tracked shipping

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

*Find out more about shipping here.

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  • Before and after showing results of Mandelic Acid Treatment
    "I’ve been using the Mandelic Acid Treatment alongside the Salicylic Acid Cleanser and Omega Water Cream for over a month now to tackle my acne scars and I see a big difference already!"

    Maggie

  • Before and after showing results of Mandelic Acid Treatment
    Mariam used our askINKEY service for 12 weeks. "A big part of this journey was Rhiannon's (askINKEY) help and I can't thank her enough for all the helpful advice and product recommendations. This was a whole ride and now I just have to be patient with the hyperpigmentation. Thanks for being present throughout my skincare journey!"

    Mariam

  • Before and after showing results of Mandelic Acid Treatment
    Mia is a loyal INKEY customer, using Salicylic Acid Cleanser in her routine along with Succinic Acid Treatment, Mandelic Acid Treatment, Retinol Serum and Niacinamide Serum.

    Mia

  • Before and after showing results of Mandelic Acid Treatment
    "I really love this duo. Finally seeing good results after battling with acne for 6+ months and trying out dozens of producs. Definitely recommend for anyone who is fighting with acne and stubborn dark spots. Faded mine within weeks. Still have a few spots, but still a HUGE difference. These photos were taken a month apart."

    Steelia

  • Before and after showing results of Mandelic Acid Treatment
    "Never leave reviews but this product has transformed my skin. Went from congested skin, cystic spots, trapped pores and whiteheads & redness to clear and smooth skin. My skin does not breakout anymore and redness is reduced a lot! I have attached photos that I have used for tracking - 2 month difference. Been using this alongside the salicylic acid cleanser."

    Sanah

4.4
Rated 4.4 out of 5 stars
Based on 293 reviews
Total 5 star reviews: 192 Total 4 star reviews: 57 Total 3 star reviews: 24 Total 2 star reviews: 8 Total 1 star reviews: 12
Reviews Summary
Customers say this treatment absorbs quickly and feels gentle on the skin. Many notice improvements in skin texture and appearance after consistent use. While some report seeing results within days, others mention it takes several weeks to observe changes. Common feedback includes its effectiveness on uneven skin tone, with most users noting gradual improvements over time. The texture receives praise for being smooth and non-sticky. Some mention the size is small for the price, but a little goes a long way.
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293 reviews
  • A
    Verified Buyer
    I recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Redness, Breakouts, Hyperpigmentation, Texture, Acne Scars
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 weeks ago
    Holy grail for cystic acne

    So bummed sephora and ulta no longer carry this, I hope it won't be discontinued. This has been the only product to help with any deep painful cystic acne I get that is basically like a pea size painful bump under the skin that never comes to a head. I used to be bad and stick those spots with a needle and ultimately just made things waaay worse, without fail, every time. This helped enormously, I just try to reapply every 6-8 hours, sometimes I throw one of the pimple patches over it to help resist picking at it, and usually within 24 hours the size (and pain) has gone down a toooon. Not only that but I have never experienced any peeling or irritation with this product, however I do also make sure to use moisturizer and spf daily.

    It works better than pretty much any higher end, more expensive products. I try everything over 15 years, from rael, neutrogena, Peter Thomas roth, drunk elephant, byoma, Ole, medicube, different acids of different percents, retinols, retinals, tret... this only thing that worked as well as this was product from Dr. Dennis gross, which was sadly discontinued. Please don't get rid of this product too 😭 I feel like if some of these photos and reviews were promoted on socials, this product would be booming.

    Anyways it's literally so cheap, if you have cystic acne just try it. You notice results within 48 hours. Mandelic is one of the more gentle acids as well so it's good for sensitive skin and also helps with redness. It does have a scent but…

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  • Amber
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    This product is amazing. I can already tell a difference in my skin. I dont know if it comes in a bigger size but even if not i'll be ordering more soon!

    Was this helpful?
  • Hadiya A.
    Verified Buyer
    Age Range 16 - 18
    Skin Type Dry
    Skin Concerns Dryness, Texture, Hyperpigmentation, Acne Scars, Fine Lines and Wrinkles
    Sensitive Skin Friendly? No
    Rated 3 out of 5 stars
    3 weeks ago
    It’s alright

    I used this for a few months on my forehead where I had hyperpigmentation scars , even though I did find them fading overtime in a few months , I’m not sure if it was due to other skincare products or this alone . A tube lasted a few months for targeted treatment but if your going to use this on your whole face , it’s going to run out sooner obviously, so bear that in mind alongside the price tag .

    Was this helpful?

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