Carbaryl use??

We’re having a terrible time with lice. I’ve tried DE; it didn’t do much. I’ve done a lot of reading on Sevin and get mixed answers so I have some questions!
Is this the correct one?
Has anyone used this before?
I attached the active ingredients in both.

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7454A201-941B-4C05-9E95-CB632FBE0D94.jpeg

tinyurlis.gdv.gdv.htu.nuclck.ruulvis.netshrtco.detny.im