In my 40s I have had very short cycles, around 14-17 days. My healthcare provider put me on progesterone, which extended my cycles, but left me groggy all day. When I would stop taking it, my cycle would be short again. To get away from the synthetic, I looked up natural herbs to help regulate my cycle and Chaste Tree came up first. I know and trust Prairie Star to have the best quality herbs and this didn't disappoint. After the first 30 days of taking this 3x/day, my cycle extended to 24 days and the last two months have been 27 days. Taking this in conjunction with Shatavari, I feel like a new person.