out of all the herbs I’ve tried CBD (real good quality, there’s a lot of cheap fake stuff out there) makes a massive impact on blood pressure. It can go too LOW too if anyone has a condition with that, be careful. Also square/box breathing. When mine is too high at the Dr.s we recheck while I do slow box breathing (in for 4, hold for 4, out for 4, hold out for 4) and my BP will drop significantly.