About the founder

Sarah Glynn

Founder of Peony, author of The Breast Cancer Book, health publisher, caregiver, and breast cancer survivor.

Sarah Glynn, founder of Peony

Sarah Glynn built Peony from her own experience navigating a breast cancer diagnosis — and from a lifetime of helping people make complex health decisions with greater clarity and confidence.

A clinically trained midwife and health publisher, Sarah has spent decades translating evidence into trusted, women-centered guidance. When she was diagnosed with breast cancer, she discovered that information wasn't the problem. The challenge was making sense of it — knowing what mattered, which questions to ask, where to turn, and how to coordinate care across many specialists.

She wrote The Breast Cancer Book during active treatment and built the Peony platform alongside it: a Care Plan™, the Peony Companion App, the Healing Happens Together podcast, the Integrative Cancer Doula profession, and the Peony Retreat — an integrated ecosystem so no woman has to face breast cancer in pieces.

Experience & expertise

Lived experience. Clinical literacy. Decades of trusted publishing.

Founder of Peony

Building an integrative, women-centered breast cancer navigation ecosystem.

Author

The Breast Cancer Book — written during active treatment.

Health publisher

Decades translating evidence into trusted health guidance.

Clinically trained midwife

Bringing professional health literacy to every decision.

Caregiver

Lost her mother to breast cancer; brings generational perspective.

Breast cancer survivor

Knows the realities that don't fit in a fifteen-minute appointment.

Be part of what's next.

Join the Peony community for trusted guidance, expert education, and meaningful support — from diagnosis onward.