I've used it before as well. Here is a story about the FDA and NAC: https://www.naturalproductsinsider.com/regulatory/crn-petition-requests-fda-reverse-positio

I've used it before as well. Here is a story about the FDA and NAC: https://www.naturalproductsinsider.com/regulatory/crn-petition-requests-fda-reverse-position-nac https://www.naturalproductsinsider.com/regulatory/crn-petiti... Honestly, I haven't used NAC in ~2 years. Have just heard about the drama from friends.