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Ingredients in Mandelic Acid Treatment
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Mandelic Acid Treatment

Helps reduce the appearance of post-breakout marks

4.4
Rated 4.4 out of 5 stars
4.4 Stars (296 Reviews)
$14.00 / 15ml

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

Standard tracked shipping

  • $5.95 or 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 296 reviews
Total 5 star reviews: 193 Total 4 star reviews: 57 Total 3 star reviews: 25 Total 2 star reviews: 8 Total 1 star reviews: 13
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.
296 reviews
  • mariam a.
    Verified Buyer
    Skin Type Combination
    Rated 3 out of 5 stars
    5 hours ago
    Unsure

    Unsure if it works but it's hard to come by mandelic acid so appreciate that it's available

  • Caroline
    Verified Buyer
    I do not recommend this product
    Age Range 18 - 24
    Skin Type Normal
    Skin Concerns Acne Scars
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? No
    Rated 1 out of 5 stars
    1 month ago
    Months of use with no results

    Started using this product in June 2025 because of an acne scar. I have fair skin so the scar is pretty noticeable; It has faded a bit, but I believe it's just because so much time has passed, no thanks to the product.

    Used twice a day and followed with sunscreen I am very disappointed, I usually love Inkeys products!

  • Shannon F.
    Verified Buyer
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Skin Concerns Hyperpigmentation, Breakouts, Fine Lines and Wrinkles, Blackheads, Dryness
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 months ago
    Holy Mandelic

    This is a must have!! I use it every day for the hyperpigmentation and the blemishes that try to rain on my parade. It helps get rid off the whiteheads too and I couldn’t be happier with the results. Anyone with hyperpigmentation or acne needs this in their toolbox