I've had an irregular period my entire life but after having my daughter my period disappeared almost completely. I was put on some thyroid meds after being diagnosed with hypothyroidism, but my periods were still only coming every 3-4 months. I found S'moo and said what the heck. I've been drinking it in a fruit smoothie almost every day for lunch for the last 2.5 months and I was shocked to have only 2 months between my last periods. I'm going to keep using this to see what some true long-term results may be but so far, I'm surprised it worked. **Sidenote** did not try to drink unflavored mixed into just water. You'll regret it. It definitely needs some fruit or outside flavoring of some kind. ;-)