I had to get my ovaries out due to possible cancer. After that, hormones went out of wack...tired...feeling weaker than before. A few years after a gynecologist recommenced Bio Identical Hormone replacement Therapy. It took a little time to kick in and WHAT a difference!!!! Skin, strength, and overall zip was like when I was 20. I didn't want to take chemical hormones. Now at 67 I feel great. I tell all my friends about this amazing miracle.