La Roche-Posay Effaclar Micro-Peeling Purifying Gel for combination skin

How to apply

Questions and answers

What the research says

• Daily treatment with a facial serum containing multiple acids reduced post-inflammatory hyperchromia lesion grade and number by 29.4% at 56 days, and decreased skin oiliness by 30.7% at 7 days in Brazilian patients with acne vulgaris.

  Journal of Cosmetic Dermatology, 2021

• Twice daily application of a multitargeted dermocosmetic cream provided comparable efficacy to benzoyl peroxide 5% gel in reducing inflammatory, non-inflammatory, and total lesions in 150 Caucasian subjects with mild-to-moderate acne over 56 days, while demonstrating superior skin tolerability.

  Journal of Cosmetic Dermatology, 2024

• The use of a salicylic acid-based dermocosmetic significantly reduces the needed quantity of benzoyl peroxide without impacting efficacy in mild to moderate acne, and as maintenance post-benzoyl peroxide allows a significant reduction of acne relapse compared to vehicle.

  Journal of Drugs in Dermatology, 2023

• Daily use of a deep cleansing gel containing salicylic acid 2%, zinc gluconate 0.2% and lipohydroxy acid 0.05% significantly reduced total lesion count by 56.3% after 84 days in 35 subjects with mild to moderate truncal acne.

  Clinical, Cosmetic and Investigational Dermatology, 2023

• A dermocosmetic cream containing Punica granatum Pericarp extract, Salicylic acid, Niacinamide, Zinc gluconate, and Aqua Posae Filiformis significantly decreased inflammatory, non-inflammatory, and total lesion counts in subjects with mild to moderate acne compared to untreated hemi-faces after 15 days.

  Journal of Cosmetic Dermatology, 2026

• Cryotherapy with liquid nitrogen achieved a higher cure rate (39%) than salicylic acid (24%) and a wait-and-see approach (16%) for cutaneous warts at 13 weeks in primary care patients.

  CMAJ, 2010

• A moisturizer containing licochalcone A, 1,2-decanediol, L-carnitine, and salicylic acid significantly reduced noninflammatory, inflammatory, and total acne lesion counts compared to a vehicle control in Thai patients during a 12-week maintenance phase.

  BioMed Research International, 2020

• Treatment with 2% supramolecular salicylic acid hydrogel resulted in a regression and markedly improvement rate of 51.01% compared to 43.10% for Adapaline gel in patients with mild to moderate facial acne vulgaris, showing no significant difference in efficacy.

  Journal of Cosmetic Dermatology, 2024

• Capryloyl salicylic acid peel reduced fine lines, wrinkles, and hyperpigmentation comparably to glycolic acid peel in 44 female volunteers, with no statistically significant differences between the two treatments.

  Journal of Cosmetic Dermatology, 2008

• Combining a salicylic acid and lipohydroxy acid facial serum and mask improved closed comedones and acne severity significantly more than serum alone in adults with acne over 8 weeks, with no adverse reactions reported.

  Journal of Cosmetic Dermatology, 2023

• Parity was demonstrated between an OTC BPO 5.5% formulation with lipohydroxy acid and tretinoin cream 0.025% versus prescription clindamycin 1%-BPO 5% gel and tretinoin cream 0.025% in participants with mild to moderate acne vulgaris at 12 weeks.

  Cutis, 2012

• A single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.

  Clinical, Cosmetic and Investigational Dermatology, 2017

• The emollient V0034CR significantly reduced TEWL compared to vehicle and vehicle plus glycerol, and significantly increased corneometry scores compared to vehicle and vehicle plus petrolatum in healthy volunteers with dry skin, demonstrating combined barrier function improvement from petrolatum and hydration improvement from glycerol.

  Journal of Cosmetic Dermatology, 2020

• Ten days of treatment with a cream containing 20% glycerin significantly increased skin hydration measured by corneometer values in 17 healthy volunteers compared to a placebo cream, but showed no influence on transepidermal water loss or skin sensitivity to an irritating surfactant.

  International Journal of Cosmetic Science, 2001

• Different strains of Propionibacterium acnes modulate cutaneous innate immunity with varying pro-inflammatory potentials, with P. acnes type III showing the highest and P. avidum the weakest, and zinc gluconate down-regulates the expression of most induced immune markers.

  Experimental Dermatology, 2013

• Zinc gluconate induced alpha2, alpha3, alphaV, and alpha6 integrins, copper gluconate induced alpha2, alpha6, and beta1, and manganese gluconate induced most studied integrins in cultured keratinocytes.

  The British Journal of Dermatology, 1999

• Coadministration of 40% topical L-menthol with 10% trans-cinnamaldehyde reduced spontaneous pain intensity, neurogenic inflammation, primary and secondary mechanical hyperalgesia, and heat hyperalgesia, but not cold hyperalgesia, in 14 healthy volunteers.

  The Journal of Pain, 2016

• Topical application of menthol-based cooling gel decreased intramuscular temperature by 1.9 °C and increased cutaneous blood flow by 0.3 ml/min in healthy males compared to placebo gel.

  International Journal of Sports Physical Therapy, 2018

• Cooling skin temperature or applying topical menthol reduced histamine-induced itch intensity and flare diameters in healthy male volunteers.

  Neuroscience Letters, 1995

Ingredients

Water, Sodium Laureth Sulfate, Decyl Glucoside, Glycerin, Sodium Chloride, Coco-Betaine, Salicylic Acid, Peg-150 Pentaerythrityl Tetrastearate, Peg-6 Caprylic Capric Glycerides, Zinc Gluconate, Sodium Hydroxide, Capryloyl Salicylic Acid, Tetrasodium Edta, Citric Acid, Menthol, Polyquaternium-47, Hexylene Glycol, Sodium Benzoate

Behind this fit score

Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.