*formerly RN Labs Progest Fortify Combination of vitex (chaste tree) and passionflower to support healthy hormonal cycle and relieve PMS symptoms. Vitex supports healthy ovulation by raising LH. Vitex should be taken from the first day you stop bleeding until the day before your bleed. Do not take during menstruation. Vitex is not advised for PCOS - please check with your healthcare provider if vitex is the right supplement for you.