La Roche-Posay
$34.54 · Sunscreen
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Ideal for
Caution
May aggravate: Seborrheic Dermatitis (Stearyl Alcohol and Glyceryl Stearate)
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☼ AM Application: Apply generously 30 minutes before sun exposure. Full
Key actives
Aqua / Water, C12-15 Alkyl Benzoate, Glycerin, Octocrylene, Niacinamide, Butyl Methoxydibenzoylmethane, Dimethicone, Ethylhexyl Triazone, Silica, Aluminum Starch Octenylsuccinate, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Terephthalylidene Dicamphor Sulfonic Acid, Potassium Cetyl Phosphate, Drometrizole Trisiloxane, Peg-100 Stearate, Stearyl Alcohol, Glyceryl Stearate, Ammonium Polyacryloyldimethyl Taurate, Capryloyl Salicylic Acid, Caprylyl Glycol, Hydrolyzed Hyaluronic Acid, Phenoxyethanol, Phenylethyl Resorcinol, Poloxamer 338, Tocopherol, Triethanolamine, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Parfum / Fragrance. For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
53 studies on 15of this product’s ingredients. These study the ingredient, not this product.
Clinics in Dermatology, 2012 · systematic-review
Review of how moisturizers affect the epidermal barrier: humectants such as glycerin increase stratum corneum hydration and can strengthen barrier function and resistance to irritation, although effects depend on formulation and some moisturizers may weaken the barrier; supports well-formulated glycerin-containing emollients for dry, barrier-impaired skin.
British Journal of Dermatology, 2008 · systematic-review
Review establishing glycerin as the gold standard humectant: attracts water to stratum corneum via hydrogen bonding, improves skin mechanical properties (elasticity, pliability), enhances desmosome degradation for smooth desquamation, and modulates aquaporin-3 channels; effective at 2-20% in topical formulations
Dermatologic Therapy, 2004 · systematic-review
Comprehensive review of moisturization mechanisms: glycerin contributes to corneocyte hydration by replacing lost natural moisturizing factor (NMF) components; maintains stratum corneum fluidity at low humidity; superior humectant performance vs propylene glycol, sorbitol, and urea in controlled comparisons
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Community outcomes are self-reported member experiences, shown separately from the evidence score — never blended into it. Educational, not medical advice.