Mascara is a commonly used cosmetic product to improve the look of eyelashes, but it can cause adverse reactions in some individuals. Allergic reactions or irritations to eye mascara are ...

In 2002, six patients with eyelid dermatitis caused by an allergic reaction to Gemey Great Lash mascara (the European version of Maybelline Great Lash mascara, L'Oreal) were reported in France.

If the makeup is for a kid, make sure you test it on their skin—just because something is fine on your own elbow doesn’t mean it’s all clear for someone else. Remember, people are different.

How to patch-test Halloween makeup . Apply a small amount of the makeup to the inside of your forearm or elbow, or to another area where skin tends to be sensitive but also not too noticeable.