How much exposure it takes to cause a reaction varies from person to person ... If that's not possible, put a little bit of sunscreen with zinc oxide and an SPF of at least 30 on small areas ...

Typically, sunblock includes zinc oxide or titanium dioxide ... as it may cause an allergic reaction. Before trying a new sunscreen or sunblock, read the label to make sure you’ll get the ...

These tend to provide less sun protection, CR's tests have found, but a few are better than othersMineral sunscreens contain ...

chemical reactions are often needed to remove other elements that might contaminate it. Zinc mostly occurs as sulfide ores, which are heated in air to convert them to zinc oxide. Molten close ...