We have used chasteberry for 2 years now on a mare who previously lived in perpetual heat. She was always an oozing mess, so much so that her hind end was inflamed and she was reluctant to move forwards or even backwards at any time. After talking to a MB nutritionist, we decided to try chasteberry- after a few months of keeping on it at a high dose, we saw a night and day difference. No more heats, except when appropriate, and no debilitating hormonal leakage. She spent her second season of full time lessons happily walk and trotting along for her riders and even picked up a canter now and then when asked. She’s skated by on a minimal dose over the last year, bumping up during regular heats to minimize the discomfort and then being able to go right back down! I have recommended MB chasteb...