A quiet field guide for a season no one prepares you for.

Yarrow & Flint exists because most women walk into perimenopause without a map. The signs arrive scattered — a wakeful 3 a.m., a shorter fuse, a body that responds differently to the same habits — and they're almost never named together.

We make one thing: a personalized perimenopause guide, written entirely around your body, your symptoms, and your life. It takes about a minute to fill out the intake. We deliver a 50–70 page PDF you can keep forever.

The guide is informed by current peer-reviewed research on hormonal change, nutrition, movement, sleep, and stress regulation. It is not medical advice — it is a careful, readable, deeply personal starting point you can take to your clinician or work with on your own.

What we believe

• Women deserve information that's been written for them, not extracted from forums.
• Perimenopause is a season, not a diagnosis. It's workable.
• Personalization beats generality. Your guide should reference your symptoms by name.
• Your data is yours. We never sell it, never use it to train external models, and delete it on request.

How it works

You answer roughly fifteen questions about how you're feeling. We compose a guide that names what's happening in your body and what to do about it — across nutrition, movement, sleep, stress, and supplementation — with a four-week starter plan and tracking prompts. Delivered in under a minute as a beautiful PDF.