Since turning 45, I've been getting rashes around my eyes from eyelash serums, so I've become more careful when choosing eyelash serums. I bought Fancl because I thought it would be safe to use. I didn't experience any itching, swelling, or stinging, so I was able to use it without worry, but the tip was too big and difficult to apply. Even after using it for a while, I didn't notice any noticeable effects, such as preventing my eyelashes from falling out or growing longer, so it seems like it just wasn't right for me.