If your tech is a cowboy, you could end up with lashes that look like a question mark or are over-permed and brittle. Always check reviews, and don’t let someone use expired solutions—they can melt your lashes off. Literally.
I once saw a woman whose lift was so intense, her lashes touched her eyebrow when she blinked. She looked permanently surprised. So, ask for a “natural” or “cat-eye” curve if you’re not aiming for anime character vibes.
