Well after l joined and paid $747 l was told it was not for Tirzeptide so l had tp pay another $450. My bloodtests showed l didn't need B12 because l had to much but was talked into it. When l called CS and told them they said ok. I got another call going over my dosage and B12 which again l didn't want but a few days later my box was tossed in my driveway and guess what B12 was included. So l don't know how l feel.