Clé de Peau Beauté Intensive Brightening Mask for mature skin

How to apply

Questions and answers

What the research says

• Potassium 4-methoxysalicylate (4MSK) suppresses melanin content, promotes keratinocyte differentiation, increases skin lightness in pigmented and non-pigmented cheek areas, and reduces the desquamation area ratio.

  Journal of Cosmetic Dermatology, 2025

• A multi-component dissolving microneedle patch loaded with glabridin, 3-O-ethyl-L-ascorbic acid, and tranexamic acid effectively reduced chloasma and age spots while demonstrating safety in clinical evaluation, alongside significant antioxidant, anti-tyrosinase, and melanin-reduction effects in vitro and in vivo.

  Polymers, 2023

• Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers.

  Experimental Dermatology, 2003

• Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation.

  Journal of Periodontology, 2009

• Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream.

  Journal of Cosmetic Dermatology, 2022

• Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.

  Journal of Drugs in Dermatology, 2011

• Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.

  Clinical Oral Investigations, 2022

• Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.

  BMC Oral Health, 2019

• Topical application of an antioxidant serum containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented particulate matter-induced degradation of extracellular matrix components, inflammation, and oxidative stress in the skin of 15 female volunteers compared to untreated controls.

  Journal of Cosmetic Dermatology, 2025

• Dermatological products containing d-alpha tocopheryl acetate showed non-comedogenic potential with less than a 50% increase in microcomedones in 12 healthy male subjects compared to octyl palmitate.

  Contemporary Clinical Trials Communications, 2021

• Topical application of an antioxidant mix containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented PM and UV-induced skin barrier perturbation, lipid peroxidation, inflammatory markers, MMP9 activation, and Type I collagen loss in 15 healthy females compared to untreated exposed skin.

  Journal of Cosmetic Dermatology, 2024

• Topical herbal treatments including lemon balm, olive leaf extract, propolis, and sage-rhubarb cream reduce pain, swelling, lesion size, and healing time in patients with herpes labialis compared with placebo or acyclovir.

  Journal of Integrative and Complementary Medicine, 2025

• Topical oleuropein formulations reduced erythema, transepidermal water loss, and blood flow by approximately 22%, 35%, and 30% in healthy volunteers with UVB-induced erythema.

  International Journal of Cosmetic Science, 2008

• An oil-in-serum formulation containing olive extract standardized in hydroxytyrosol improved skin barrier function and significantly reduced hyperpigmentation in participants with post-inflammatory hyperpigmentation after 45 days of application.

  AAPS PharmSciTech, 2026

Ingredients

Water, Dipropylene Glycol, Glycerin, Betaine, Butylene Glycol, Tranexamic Acid, Peg Ppg-14 7 Dimethyl Ether, Potassium Methoxysalicylate, Isostearic Acid, Cetyl Ethylhexanoate, Phenoxyethanol, Lauryl Betaine, Carbomer, Potassium Hydroxide, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Disodium Edta, Parfum, Glucosamine Hcl, Sodium Metabisulfite, Alcohol, Olea Europaea Leaf Extract Olive Leaf Extract, Dipotassium Glycyrrhizate, Tocopheryl Acetate, Sodium Acetylated Hyaluronate, 3-O-Ethyl Ascorbic Acid, Lilium Candidum Bulb Extract, Sodium Benzoate, Bupleurum Falcatum Root Extract, Rubus Idaeus Fruit Extract Raspberry Fruit Extract, Chaenomeles Sinensis Fruit Extract, Rubus Suavissimus Leaf Extract Raspberry Leaf Extract, Rosa Roxburghii Fruit Extract, Camellia Sinensis Leaf Extract, Rosa Centifolia Flower Extract, Uncaria Gambir Extract, Zingiber Aromaticus Extract, Hydrolyzed Conchiolin Protein, Hydrolyzed Silk

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.