Why we need progesterone,
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It needs to be bio-identical.....

PC restores receptor sensitivity, meaning estrogen dominance caused the initial insensitivity. Or in other words......stalled growth.

PC in the presence of estrogen helps build breast tissue.

PC only has a half life of 5 minutes.

PC needs to be spread (thinly) over a large area for better absorption.

PC is a strong 5 ar inhibitor........aka anti DHT.

Progesterone may also lessen the risk of cancer associated with long-term estrogen treatment.