I was using HCL, once a Week to once every 2 weeks. 2-3 grams for me to feel it. I decided to try faa bc or hcl acidity. Everything I read and everything others told me suggested I’d need less faa than hcl, and that under the tongue made it hit faster. After a few failed attempts I finally realized I actually needed 4 ’grams to feel faa AT ALL. Even at that dose once a week it just stopped working at all. I took a few weeks off, tries again, same results. I decided to try f-phenibut, huge waste of money IMO. I felt almost not thing at all from it from experimenting with doses between 200-800mg. I’m going to just take time Off them go back to hcl bc in my experience it’s the only one worth a damn lol