Mehmet Oz, MD

“Music makes people more receptive to learning and helps increase retention. Dr. Mache’s HealthRock ® is a uniquely brilliant format for sharing health messages.”

Magdalena Wszelaki – Certified Nutrition Coach

Dr. Mache Seibel does to estrogen and hormone replacement therapy what other breakthrough thinkers did to our fear of fats – debunk, educate and assure that there is a time and place for the vilified estrogen. A must-have in any woman’s book library.

Stephen T. Sinatra, M.D., F.A.C.C., F.A.C.N.

Dr. Mache Seibel’s meticulously documented estrogen window concept as to when to use estrogens, in my opinion, is brilliant and the first time I’ve ever seen it explained so clearly. This book should be read by every woman who wishes to improve her quality of life in...

Lisa Sasevich – Queen of Sales Conversion

The Estrogen Window is the first clear explanation I’ve read about the confusing and scary topic of estrogen. What I learned will not only be helpful to me; it will also help me be a better mentor to the hundreds of women entrepreneurs I teach around the...