I was using it along with Vitex as well. I got it from the Naturopath, and I used it every day after ovulation. It was 3-5mg which was just one 'pump' (it was a pump bottle) and I was told put it on the softer parts of my body (tummy, inside legs/arms ect). To be honest I don't think it worked, it did help my LP by a day but I didn't fall pregnant on it. But I'm still glad I gave it a try. HTH