Skin allergy test: Before you use a dye product, you should follow the instructions in the package to do a allergy skin patch test. Apply a small amount of dye on your arm, keep it dry by covering it with a bandaid, check it in 48 and 72 hours to make sure you didn't react with redness or swelling. If not, this dye is safe to use.
Answered 12/7/2014
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