La Roche-Posay Effaclar Mat for skin with dark spots

How to apply

Questions and answers

What the research says

• 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

• 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

• Balneotherapy with thermal water altered specific skin microbiota at genus and species levels in healthy female volunteers compared to tap water, which produced no significant microbiome changes.

  Life, 2023

• Malaysian thermal spring water as an adjunct to standard acne therapy improved skin hydration, reduced dryness and stinging, enhanced overall tolerability, and improved the acne disability index in patients with mild to moderate acne.

  The Medical Journal of Malaysia, 2024

• A 2% Sphingomonas xenophaga ferment extract cream applied twice daily for 4 weeks significantly decreased facial vascular disorder scores compared to vehicle in 86 Caucasian female subjects, alongside dose-dependent inhibition of pre-kallikrein activity in vitro.

  International Journal of Cosmetic Science, 2025

• 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

• Wearing an N95 mask alone compared to using dimethicone cream or hydrocolloid dressing caused more adverse skin reactions among 73 military health care workers, with no significant differences in fit test failure rates between groups.

  Military Medicine, 2024

• A dimethicone skin protectant lotion significantly decreased visual scoring and transepidermal water loss compared to vehicle control and SLS-only treated sites in 12 healthy humans exposed to sodium lauryl sulfate.

  Skin Research and Technology, 2000

• Treatment with a moisturizer containing dimethicone and glycerine increased epidermal thickness by 0.019 mm, improved barrier function by decreasing transepidermal water loss by 13%, decreased melanin intensity, and induced keratins 6 and 16 in fifteen women with moderately photoaged forearms.

  Clinical and Experimental Dermatology, 2007

• 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

• 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

• 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

Ingredients

Water, Glycerin, Dimethicone, Isocetyl Stearate, Alcohol Denat, Silica, Dimethicone Vinyl Dimethicone Crosspolymer, Acrylamide Sodium Acryloyldimethyltaurate Copolymer, Methyl Methacrylate Crosspolymer, Butylene Glycol, Peg-100 Stearate, Cocamide Mea, Sarcosine, Glyceryl Stearate, Triethanolamine, Isohexadecane, Perlite, Capryloyl Salicylic Acid, Tetrasodium Edta, Pentylene Glycol, Polysorbate 80, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Salicylic Acid, Parfum

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.