Cetaphil Sheer Mineral Sunscreen SPF 50 for oily acne-prone skin

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Questions and answers

What the research says

• Biomimetic hyaluronic acid-stabilized zinc oxide nanoparticles selectively inhibited C. acnes, outperformed erythromycin in preclinical acne models, and safely reduced acne lesions and redness in a clinical trial.

  Journal of Controlled Release, 2025

• Topical 0.5% hyaluronic-ZnO nanogel applied twice daily reduced inflammatory-lesion counts by 58% at week four in human subjects compared to baseline without causing erythema.

  Biomedicines, 2025

• Colloidal oatmeal induced skin barrier-related gene expression in vitro and showed significant clinical improvements in skin dryness, moisturization, and barrier in 50 healthy female subjects treated with a colloidal oatmeal lotion.

  Journal of Drugs in Dermatology, 2016

• Colloidal oat extracts diminished pro-inflammatory cytokines in vitro and colloidal oat lotion improved skin dryness, scaling, roughness, and itch intensity in healthy female subjects compared to baseline.

  Journal of Drugs in Dermatology, 2015

• A multiple W/O/W emulsion containing Rosmarinus officinalis L., Avena sativa L., and Linum usitatissimum L. extracts showed no irritant, phototoxic, inflammatory, or allergenic potential in human skin models and patch tests, establishing its safety as a cosmetic base.

  Pharmaceutics, 2021

• Microfine titanium dioxide does not penetrate human skin when formulated in an oil-in-water emulsion with the pigment dispersed in the aqueous phase, compared to oily dispersions and liposomal encapsulation which allow deeper skin penetration.

  International Journal of Cosmetic Science, 2000

• Replacing microsized titanium dioxide and zinc oxide with nanoparticles in sunscreens eliminates opaqueness and alters UV protection balance while inducing (photo)cyto- and genotoxicity and penetrating viable skin layers during long-term exposures.

  Nanotechnology, Science and Applications, 2011

• Microfine zinc oxide and titanium dioxide do not penetrate the stratum corneum of porcine skin in vitro, indicating that their use in sunscreens does not pose a health risk from internal exposure.

  Toxicology in Vitro, 2006

• Nels cream achieved a similar reduction in inflammatory and noninflammatory lesion counts compared to 5% benzoyl peroxide in acne vulgaris patients, but caused significantly fewer side-effects such as peeling and dryness.

  Clinical and Experimental Dermatology, 2000

• Topically applied coated and uncoated zinc oxide nanoparticles under flexing and massage are retained in the stratum corneum with no significant penetration into the viable epidermis and no cellular toxicity in human skin.

  Nanomedicine, 2016

• 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

• A repair cream containing Rhealba oat plantlets extract, l-ALA-l-GLU dipeptide, and hyaluronic acid provided immediate relief and was judged by doctors as good or very good in 96.8% of cases for wound healing in 2,363 patients following dermatological acts.

  Clinical, Cosmetic and Investigational Dermatology, 2018

• Topically applied Avena sativa and Avena Rhealba oatmeal extracts significantly reduced skin irritation parameters including a* parameter increase and blood flow increase compared to vehicle in 12 healthy individuals subjected to the sodium lauryl sulfate irritation model.

  Skin Pharmacology and Applied Skin Physiology, 2002

• Colloidal oat increased the growth rate, metabolism, and lactic acid production of Staphylococcus epidermidis compared to Staphylococcus aureus in vitro, matching clinical increases in lactic acid on dry skin after 6 weeks of lotion use.

  Clinical, Cosmetic and Investigational Dermatology, 2021

Ingredients

Titanium Dioxide, Zinc Oxide, Alumina, Arachidyl Alcohol, Arachidyl Glucoside, Ascorbic Acid, Avena Sativa Kernel Extract Oat Kernel Extract, Beeswax, Behenyl Alcohol, Benzyl Alcohol, Bisabolol, Butylene Glycol, Butyloctyl Salicylate, Calendula Officinalis Flower Extract, Camellia Sinensis Leaf Extract, Carbomer, Ceramide Ap, Ceramide Eop, Ceramide Np, Cetyl Dimethicone, Chamomilla Recutita Flower Extract Matricaria Flower Extract, Cholesterol, Dimethicone, Dimethicone Peg-8 Laurate, Dipotassium Glycyrrhizate, Disodium Edta, Ethylhexylglycerin, Glycerin, Glyceryl Stearate, Hydrated Silica, Hydroxyethyl Acrylate Sodium Acryloyldimethyl Taurate Copolymer, Isohexadecane, Maltodextrin, Methicone, Panthenol, Pantothenic Acid, Peg-100 Stearate, Peg-8, Phytosphingosine, Polyaminopropyl Biguanide, Polymethyl Methacrylate, Polysorbate 60, Potassium Sorbate, Propylene Glycol, Sodium Lauroyl Lactylate, Stearic Acid, Styrene Acrylates Copolymer, Tocopheryl Acetate Vitamin E, Triethoxycaprylylsilane, Trimethylsiloxysilicate, Trisiloxane, Vp Eicosene Copolymer, Water, Xanthan Gum

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.