Kiehl's Age Defender Moisturizer for skin with dark spots

How to apply

Questions and answers

What the research says

• 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

• Petrolatum-based skin protectants demonstrated protection against irritants and maceration while providing skin hydration, whereas dimethicone and zinc oxide products showed varying or limited performance across parameters among 18 healthy volunteers compared to positive and negative controls.

  Ostomy/wound Management, 2005

• 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

• Niacinamide/glycerin body moisturizers provided better rapid and prolonged improvement of cosmetic xerosis through functional improvement of stratum corneum barrier function compared to no treatment and conventional moisturizers in female subjects.

  Journal of Drugs in Dermatology, 2012

• 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

• 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

• Externally applied substances such as ceramides, hyaluronic acid, licorice extracts, dimethicone, petrolatum, and paraffin wax treat skin disease resulting from damage to the skin barrier.

  Clinics in Dermatology, 2012

• 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

• 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

Why other moisturizers fit skin with dark spots better

• Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.

  The British Journal of Dermatology, 2002

• Topical oxidized glutathione significantly decreases the skin melanin index and improves moisture content, smoothness, wrinkle formation, and elasticity compared to placebo in healthy women.

  Clinical, Cosmetic and Investigational Dermatology, 2014

• Topical application of Lactobacillus plantarum-GMNL6 enhanced collagen synthesis and SPTSSA gene expression while reducing melanin synthesis, Staphylococcus aureus biofilm, and Cutibacterium acnes proliferation, leading to clinical improvements in skin moisture, color, spots, wrinkles, UV spots, and porphyrins in human volunteers.

  International Journal of Medical Sciences, 2021

Ingredients

Water, Glycerin, Dimethicone, Alcohol Denat, Sucrose Stearate, Orbignya Oleifera Seed Oil, Pentaerythrityl Tetraethylhexanoate, Poly C10-30 Alkyl Acrylate, Theobroma Cacao Seed Butter, Hydrogenated Polyisobutene, Octyldodecanol, Stearic Acid, Palmitic Acid, Synthetic Wax, Sodium Polyacrylate, Phenoxyethanol, Capryloyl Salicylic Acid, Parfum, Polyurethane-2, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Polymethyl Methacrylate, Chlorphenesin, Xanthan Gum, Sodium Hydroxide, Limonene, Hydrolyzed Linseed Extract, Dimethiconol, Tocopherol, Caffeine, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Glycine Soja Protein, Soybean Protein, Myristic Acid, Ascorbyl Glucoside, Adenosine, Vaccinium Myrtillus Fruit Extract, Sodium Benzoate, Caprylyl Glycol, Dimethyl Mea, Saccharum Officinarum Extract, Sodium Cocoyl Glutamate, Linalool, Ethylhexylglycerin, Sodium Dehydroacetate, Citrus Aurantium Dulcis Fruit Water, Fruit Water, Lemon Fruit Extract, Potassium Sorbate, Sugar Maple Extract, Citral

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.