Growing back eyelashes

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So when I was in middle school I had this nervous tic and would pull my eyelashes out, not all of them but the outside half if that makes sense. 😔 it was an awful habit that I thankfully outgrew. But I noticed that when I close my eyes they don't look as full as they could. Any products/ serums reccomend? I have blue eyes and I would not like to jeapordize them 😕