COSRX Vitamin E Vitalizing Sunscreen SPF 50+ for combination skin

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Questions and answers

What the research says

• Chemical sunscreens containing avobenzone, octocrylene, homosalate, and octisalate showed no to minimal risks of dermal irritation, sensitization, photo-allergy, and photo-irritation in human subjects.

  Journal of Drugs in Dermatology, 2025

• Topical application of 1,3-propanediol at various concentrations, alone or combined with butylene glycol and/or glycerol, increased skin hydration and reduced trans epidermal water loss in 30 healthy female subjects over an 8-hour period, with the 15% concentration and the addition of glycerol providing greater benefits.

  International Journal of Cosmetic Science, 2024

• Sustainable cosmetic products formulated with renewable PDO-based emulsifiers showed equivalent performance in sensory and moisturization evaluations compared to those formulated with petroleum-derived PEG-based emulsifiers.

  Journal of Cosmetic Science, 2017

• 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

• Encapsulation of ethylhexyl methoxycinnamate and butyl methoxydibenzoylmethane in lipid microparticles significantly reduced their in vivo human skin penetration compared to nonencapsulated filters.

  Skin Pharmacology and Physiology, 2011

• Microencapsulation of the BMDBM/HP-beta-CD complex in lipid microparticles significantly decreased the percutaneous penetration of the UV filter into the stratum corneum of human volunteers compared to the non-encapsulated sunscreen agent.

  Journal of Pharmaceutical and Biomedical Analysis, 2011

• Following human skin application of an O/W emulsion containing 2% BMDBM loaded in lipospheres, 15% of the sunscreen accumulated in the uppermost layers of the stratum corneum without remarkably modifying skin permeation compared to unencapsulated sunscreen.

  Skin Pharmacology and Physiology, 2008

• Dermal application of a sunscreen containing 10% homosalate in four volunteers resulted in delayed elimination with terminal half-times around 24 h and a bioavailability of cis-homosalate a factor of 2 lower than trans-homosalate, while metabolite ratios supported using oral-route urinary excretion fractions for dermal exposure assessments.

  Archives of Toxicology, 2024

• Homosalate exhibited the highest permeation among tested filters with a relative permeability rate of 4.2% and a depth of 60 um, and specific thickeners and emulsifiers successfully reduced its permeation without inhibiting the skin permeation of niacinamide.

  Photodermatology, Photoimmunology & Photomedicine, 2026

• An online-SPE-LC-MS/MS method successfully quantified specific urinary homosalate metabolites for up to 96 hours after dermal sunscreen application in a volunteer and detected metabolites exclusively in three German pilot participants who had used sunscreen within five days.

  Analytica Chimica Acta, 2021

• Incorporating rosmarinic acid into sunscreens enhanced the in vivo SPF of octocrylene by over 157% and reduced lipid peroxidation in the human stratum corneum.

  Antioxidants, 2025

• The application of a sunscreen formulation containing ethylhexyl methoxycinnamate, ethylhexyl salicylate, methyl anthranilate, and octocrylene does not significantly affect critical acne-related species such as Cutibacterium acnes and Staphylococcus epidermidis, refuting the induction of facial dysbiosis in men.

  Archives of Dermatological Research, 2024

• Early application of sunscreen after ablative fractional skin resurfacing significantly increased the sensitization rate of the UV-filter, octocrylene, and the sunscreen compared to intact skin.

  The Journal of Dermatological Treatment, 2015

• Simulated real-life dermal sunscreen exposure in twenty human volunteers leads to the systemic bioavailability and urinary excretion of the UV filter 2-ethylhexyl salicylate and its metabolite, reaching concentration peaks at 7 to 8 hours with 70-80% of overall excretion within 24 hours.

  Archives of Toxicology, 2019

• Controlled single dermal exposure to an EHS-containing sunscreen in three volunteers resulted in delayed systemic resorption with elimination half-lives between 6.6 and 9.7 hours, where the parent compound EHS occurred as the dominant urinary parameter.

  Archives of Toxicology, 2024

• Dermal exposure to EHS-containing sunscreen leads to the urinary excretion of EHS as the main biomarker alongside major metabolites 5OH-EHS, 5cx-EPS, 4OH-EHS, and 5oxo-EHS, measured using an extended enzymatic hydrolysis and on-line SPE LC-MS/MS method.

  Talanta, 2024

Ingredients

Avobenzone, Homosalate, Octocrylene, Octisalate, Water, Propanediol, Butyloctyl Salicylate, Diphenylsiloxy Phenyl Trimethicone, Dimethicone, Vp Eicosene Copolymer, Silica, Trisiloxane, Cyclopentasiloxane, Trimethylsiloxysilicate, 1,2-Hexanediol, Behenyl Alcohol, Glyceryl Stearate, Peg-100 Stearate, C14-22 Alcohols, Cetyl Alcohol, Potassium Cetyl Phosphate, Polyacrylate-13, Polyisobutene, Parfum, C12-20 Alkyl Glucoside, Butylene Glycol, Disodium Edta, Ethylhexylglycerin, Polysorbate 20, Sorbitan Isostearate, Dextrin, Theobroma Cacao Extract, Gossypium Herbaceum Extract, Glucose, Tocopherol

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.