11 citations,
October 2003 in “PubMed” Treatments with certain oils and resins make hair shinier, while zinc oxide and synthetic sebum make it duller.
195 citations,
January 2008 in “Photochemistry and Photobiology” Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.
264 citations,
January 2008 in “Journal of biomedical optics” Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.
62 citations,
October 2010 in “Journal of biomedical nanotechnology” Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.
September 2022 in “The American journal of dermatopathology/American journal of dermatopathology” Sunscreen particles were not found in inflamed or fibrotic areas of skin in FFA patients, suggesting no direct link to the disease.