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About

Eucerin DERMOPURE CLINICAL Triple Action Corrective Fluid is recommended by dermatologists and clinically proven to correct the three main types of imperfections: blemishes, post-acne marks, and comedones. This unique, concentrated formula combines 2% Salicylic Acid (BHA) and patented Thiamidol.
NART: 66862-09900-28

Eucerin DERMOPURE CLINICAL Triple Action Corrective Fluid is a powerful facial fluid recommended by dermatologists and clinically proven to address the three main types of imperfections: 

  1. Blemishes
  2. Post-acne marks
  3. Comedones

Designed for oily to blemish-prone skin, this oil-free corrective fluid addresses specific concerns while maintaining a lightweight texture. It effectively targets the skin microbiome and provides essential hydration.

Suitable from 12 years old and on all phototypes.

How to Use

• Apply one pump of the product twice a day on dry skin after cleansing with Dermopure Clinical Purifying Cleanser. • In the morning, finish your routine with the Eucerin Oil Control Sun Protection. • Avoid eye contact.

Step-by-step guide for DERMOPURE CLINICAL TRIPLE ACTION

Apply one full pump to thoroughly cleansed skin morning and evening. Avoid eye area.

Main findings

*Product in use study with 100 volunteers, 8 weeks of regular usage twice a day.
-66%
PIMPLES 1
-80%
ACNE MARKS 2
-62%
COMEDONES 3
97%
FEEL MORE CONFIDENT ABOUT THEIR SKIN 4
FAQ

What are post-acne marks (post-inflammatory hyperpigmentation or PIH for short)?

PIH is a type of hyperpigmentation of the skin that is mainly triggered by the way skin regenerates after inflammation. It can affect the face and body, typically especially UV-exposed areas, and appears as flat spots of hypercoloration. These range in color from pink to red, brown or black, depending on skin tone and the depth of hypercoloration. The root cause is increased melanin production, the pigment that defines the color of a person’s skin, which is stimulated by inflammatory factors. The blemish triggers melanocytes – the melanin-producing cells – to release excessive melanosomes (pigment granules). The excessive pigment granules darken and discolor the formerly stressed area. Once initial blemishes have subsided, spots of hypercoloration, so-called post-acne marks, can remain.

Additionally, sun exposure can aggravate PIH symptoms, darkening the affected patches and prolonging the time it takes for them to fade. Most acne-related PIH will eventually fade over time, but it can take several years or even a decade until it is fully gone*.

*Abad-Casintahan, F. et al., “Frequency and Characteristics of Acne-Related Post-Inflammatory Hyperpigmentation.” J Dermatol. 2016; 43:826–828.

Who is affected by post-acne marks?

Post-inflammatory hyperpigmentation is common among many acne sufferers since a root cause for acne is inflammation. Those post-acne marks left behind after blemishes subsided can be even more aggravating and emotionally distressing than acne itself. Men and women are equally susceptible, and all skin types can get post-inflammatory hyperpigmentation, although it is more prevalent in darker tones of skin, with over 65% of the Black Americans experiencing it, followed by 53% of Hispanics, 47% of Asians and 25% of Caucasians*. This means that we need effective and tolerable skincare fighting both blemishes and post-inflammatory hyperpigmentation for consumers all over the world.

* Kaufman et al., Am J Clin Dermatol. 2018; 19:489–503, Perkins et al., JEADV. 2011; 25(9):1054–1060.

How can post-acne marks be prevented?

PIH is mainly triggered by the way skin regenerates after an inflammation. To prevent it, though there are no guarantees, avoid picking at or pressing your pimples. The best prevention is, however, to target acne-related PIH at the root, meaning preventing blemishes from appearing and getting inflamed. Use a mild but effective cleanser and use light, non-comedogenic skincare with anti-inflammatory ingredients, like licochalcone A and keratolytic salicylic acid, which are used in our Eucerin® Dermopure Triple Effect Serum to prevent pores from clogging. 

Additionally, sun exposure can aggravate PIH symptoms, so we recommend sun protection. Limit the time you spend in the sun and keep out of the sun during its most intense hours. Wear protective clothing and sun hats whenever possible and apply a sun protection factor of at least 30, to protect marks from darkening and help prevent new marks from appearing by using specialized skincare like Eucerin® Dermopure Protective Fluid SPF 30. 

What is so special about Thiamidol?

Thiamidol is an exclusive and patented active ingredient developed during a 10-year research project. It reduces post-inflammatory hyperpigmentation by addressing the root cause, the production of melanin in the skin. Many known ingredients have undergone testing on mushroom enzymes alone rather than on human skin enzymes. 
The efficacy of Thiamidol in our Eucerin® Dermopure Triple Effect Serum has been demonstrated in real-life testing. Clinical trials* and other responses have shown that our formulation effectively reduces post-acne marks.

*Clinical efficacy study, 12 weeks, 2× daily use, 40 female and male patients, 18–40 years of age.

Beyond Thiamidol, what makes the DermoPure Triple Effect Serum so effective on blemish-prone skin with post-acne marks?

In addition to Thiamidol to reduce persistent post-acne marks and prevent their appearance, it contains salicylic acid to reduce blemishes as well as licochalcone A to prevent new blemishes from appearing. Thanks to the sebum regulation technology, the formulation leaves the skin with a long-lasting, matte and non-shiny look. In addition, the serum is non-comedogenic and has a decidedly light feel on application.

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2 Clinical study, self-grading score, 43 volunteers, 12 weeks of use twice daily, compared to baseline.

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4 Product-in-use, 100 subjects, after 4 weeks

Eucerin

100 years of history and innovative science for high-quality skincare that works. To make you feel good and enjoy life to the fullest, discover the life-changing power of dermatological skincare.

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New
Eucerin DermoPurifyer

DERMOPURE CLINICAL TRIPLE ACTION

  • 4.2
    156 reviews
Skin concerns
Blemish-prone-skin
Key Benefits
  • NON-COMEDOGENIC
  • OIL-FREE
  • SUITABLE ON ALL PHOTOTYPES
  • TESTED FOR BLEMISH-PRONE SKIN
  • DAILY USAGE
  • FSC-CERTIFIED PAPER
Read More
Key Ingredients

Thiamidol, Salicylic Acid

Learn More
Size
40 ml
Find a pharmacy
4.2
from 156 reviews*
Write Review
    14/06/2025
    Cleared my redness in three days
    Never write reviews but think this will help some people! Nothing else seemed to work for my post-spot red marks HOWEVER… applying this serum at night and following it with LA ROCHE-POSAY ‘cicaplast baume B5 ’ has reduced my post-spot redness almost immediately. I am SO impressed by these results and would highly recommend. (The before and after of just two days is incredible!)
    Boo
    Sample: Free sample provided
    20/05/2025
    Completely cleared up my skin
    Completely cleared up my acne! I use twice a day during bad breakouts and then once a day once your skin has mostly cleared up for maintenance. Make sure you use a good moisturiser, or it will dry your skin. It's genuinely been one of the best products for my acne and acne scarring
    Shannon Skye
    Originally posted on boots.com
    04/05/2025
    Probably won’t buy this again
    Peels during application so I only use it at night
    Faye
    Originally posted on boots.com
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*Reviews are not verified for authenticity