11/17/2025
Estrogen & Breast Cancer: What the Science Really Shows
Most women were taught to fear hormone therapy… but the data tells a very different story.
🔹 In the Women’s Health Initiative, estrogen-only therapy actually reduced breast cancer incidence and mortality.
🔹 The small increase seen in the estrogen + progestin group was not statistically significant — and the progestin used was a synthetic progestin, not bioidentical progesterone.
🔹 Bioidentical progesterone has not been shown to increase breast cancer risk in studies. Its effects differ from synthetic progestins.
🔹 And yes — women with a history of breast cancer have been safely treated with hormone therapy after remission, within evidence-based, supervised protocols.
✨ When it comes to hormone health, women deserve facts — not fear.