Kiehl's Facial Fuel Energizing Moisture Treatment for Men for skin with dark spots

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What the research says

• Treatment with ascorbyl glucoside-arginine complex lotion significantly decreased pigmentation scores and melanin index while increasing lightness in solar lentigos of Japanese females compared to placebo over 24 weeks.

  International Journal of Molecular Sciences, 2024

• A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability.

  The Journal of Dermatological Treatment, 2017

• Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment.

  American Journal of Clinical Dermatology, 2002

• A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment.

  Journal of Cosmetic Dermatology, 2025

• Alpha-tocopherol loaded nanostructured lipid carrier gel provided enhanced moisturizing and anti-aging properties in human volunteers over 12 weeks.

  Journal of Cosmetic Dermatology, 2020

• 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 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 application of a cosmetic cleanser containing Diospyros kaki folium, Polygonum cuspidatum, and Castanea crenata var. dulcis extracts reduced skin oil content by 77.3%, pore number by 24.83%, and pore size by 71.43% in healthy volunteers compared to a control cleanser.

  Biomedical Reports, 2015

• A Castanea sativa spiny burs extract-loaded topical emulsion improved skin hydration, skin elasticity, and reduced periorbital wrinkles in 30 days in healthy human volunteers compared to placebo without altering skin barrier function, sebum, pH, or erythema.

  Pharmaceutics, 2021

• An antioxidant surfactant-free topical formulation containing Castanea sativa leaf extract demonstrated stable physical and microbiological properties, a release rate of 610 ± 70 µgh(-0.5), and a significant in vivo moisturizing effect lasting at least 4 hours.

  Drug Development and Industrial Pharmacy, 2015

• A topical cosmetic slimming product containing tetrahydroxypropyl ethylenediamine, caffeine, carnitine, forskolin and retinol significantly reduced body circumferences and improved skin aspect compared with placebo in 78 women over 12 weeks.

  International Journal of Cosmetic Science, 2011

• Topical sunscreen formulations containing caffeine combined with UV filters increased in vivo anti-UVB protection by approximately 25% and showed higher SPF values compared to caffeine-free sunscreen, while being well tolerated by the skin of healthy subjects.

  Frontiers in Physiology, 2019

• Caffeine gel combined with choline geranate showed high skin permeation capacity and superior clinical results in cellulite treatment compared to caffeine gel without ionic liquid.

  AAPS PharmSciTech, 2021

Ingredients

Water, Cyclohexasiloxane, Alcohol Denat, Glycerin, Propanediol, Dimethicone, Zea Mays Germ Oil, Panthenol, Ascorbyl Glucoside, Triethanolamine, Phenoxyethanol, Glyceryl Linoleate, Polyperfluoromethylisopropyl Ether, Polyacrylamide, Dimethiconol, Glyceryl Oleate, Carbomer, Cetyl Alcohol, C13-14 Isoparaffin, Parfum, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Glycine Soja Oil, Soybean Oil, Caffeine, Tocopherol, Hydrogenated Lecithin, Chestnut Seed Extract, Benzophenone-4, Menthol, Limonene, Peg-100 Stearate, Glyceryl Stearate, Pentylene Glycol, Laureth-7, Hydrolyzed Soy Protein, Potassium Cetyl Phosphate, Disodium Edta, Glyceryl Linolenate, Citrus Aurantium Dulcis Juice, Juice, Lemon Juice, Linalool, Ethylhexylglycerin, Sodium Benzoate, Citral, Potassium Sorbate, Ci 42090, Blue 1, Ci 14700, Red 4

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.