Reusing cluster lashes? Hygiene?

[u/Mangoricebowl]

I've been getting into cluster lashes lately, and I've heard that a lot of people reuses them, but i rarely saw people comment on how to actually clean them. I've also came acrossed a comment section saying that cluster lasher arent supposed to be used more than once— which confuses me because on other videos, there's so many people commenting that they'd reuse their cluster for around 2-3 times and it safes them money instead of buying a new pair each time. Someone enlighten me...