Free guides, no strings.
Everything here is written by me, built from what I use in clinic, and yours for an email. For women navigating hormones, sex, and longevity, and for the providers who treat them.
Each guide arrives by email within a few minutes. Newsletter subscribers only, and you can leave any time.
Take charge of your health.
Start with the one that matches the question you are asking this week.
The Optimal Labs Guide
Sixty-six markers across eight panels, with the ranges I actually use in clinic, not the standard reference ranges. What to test, what each number means, and what to aim for.
The Perimenopause Guide
Perimenopause is not a decline. It is the biggest intervention window of your life. What is happening, hormone optimization 101, and how to find a doctor who gets it.
It’s Not Too Late: Hormones After 60
Women over 60 are told they missed the hormone window. The evidence says otherwise. What is actually safe, what truly works, and exactly what to ask your doctor.
The Sexponential Health Guide
What your doctor never told you about sexual health after 35: the types of dysfunction, the hormones involved, and the treatments that actually work.
Top 10 Supplements for Midlife Women
The supplements that make a measurable difference after 35: what to take, what to skip, and what the research says.
The Estradiol Swap Tool
Patch backordered? Enter your current estradiol, patch, gel, spray, ring, oral, or injection, and see every FDA-approved alternative with serum levels and prices.
One guide is not on this page. Book buyers get it.
The Midlife Hormone Field Guide: 14 pages, the one I give my own patients.
Perimenopause and menopause decoded: the ten-year timeline, the tear-out lab panel with cycle timing, what each hormone gives back, and the questions to ask a prospective doctor. It is reserved for people who pre-order The Female Longevity Advantage, and it arrives the minute you claim.
Pre-order the hardcover anywhere, claim with your order number, and it is yours, with Chapter One read by me and a seat at the launch-week Q&A.
Clinical resources.
For the clinicians who treat the women above. Concise, practical, and free.
The HOT Quick Start Guide
A concise clinical companion for providers starting their first hormone optimization patients: the SMARDT framework, baseline labs, key contraindications, and next steps. The essentials without the 300-page guidebook.
The Estradiol Swap Tool, clinician mode
The same swap tool with pharmacokinetic detail, bioavailability data, and clinical notes for each formulation.
The HOT Provider Course
These free resources are a starting point. For comprehensive training in hormone optimization therapy: 23 on-demand modules, a 300-page clinical guidebook, and CME included.
Dr. Amy Killen, MD
Emergency physician turned longevity and hormone doctor. Creator of the HOT Provider Course, co-pioneer of the Full Body Stem Cell Makeover, 200K+ followers on Instagram, and the author of The Female Longevity Advantage (Little, Brown Spark, February 2027).
© 2026 Dr. Amy Killen, MD. All rights reserved.