Ill take it only one month cause i got job for first time , i take ashwaganda gellule not like herbs and i read lot of still takein it for three months and nothing happened to them but like yes i make sure I'll stop if i noticed anying bad especially nausea, and ill take for one month help it with magnesia ( mag+ b vitamines + cal ) all reduce stress , those remedies not curing stutter but reduce stress , by reducing stress u can do things without fear or panic and those things may be reason to be fluent like motivate you or idk , ill try and see