Lash serums, or serums that go on your eyes as opposed to your face, seem like magic, because guess what? They actually work.

Eye expert Dr. Allison V. Coombs explains why eyelash-shedding season happens, what’s considered normal — and when to worry.

3. Irritation from makeup: Some people may experience an allergic reaction to some makeup products, like mascara or false eyelash glue. Inflammation from an allergic reaction can cause eyelashes ...

Since lash extensions have a stronger hold, they can be more difficult to remove if irritation occurs ... then apply the lash ...