Free Resources & Guides
Evidence-based, physician-created guides for women navigating hormone health, sexual wellness, and longevity — and for the providers who treat them.
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.
Perimenopause Guide
The hormone shifts, the symptoms nobody warned you about, and what you can actually do about all of it. Your roadmap for this transition.
Optimal Serum Labs
The serum lab values your doctor should be checking — and the optimal ranges that matter for how you feel, not just what’s “normal.”
Top 10 Supplements for Midlife Women
Evidence-based supplements that actually make a difference for women over 35 — what to take, what to skip, and what the research says.
Estradiol Swap Tool
Enter your current estradiol — patch, gel, spray, ring, oral, or injection — and see every FDA-approved alternative with serum levels and prices.
Estradiol Swap Tool
The same swap tool with a clinician mode — pharmacokinetic details, bioavailability data, and clinical notes for each formulation.
HOT Quick Start Guide
A concise clinical companion for providers starting their first hormone optimization patients. The essentials without the full 300-page guidebook.
Want the Full Deep Dive?
These free resources are a starting point. For comprehensive training on hormone optimization therapy, check out the HOT Provider Course — 23 videos + a 300-page guidebook.
A bit about me
I’m Dr. Amy B. Killen, MD — Chief Medical Officer of Humanaut Health and co-founder of HOP. I’m the creator of the HOT Provider Course, and I co-pioneered the Full Body Stem Cell Makeover. I’m board-certified in emergency medicine (ABEM) and metabolic and regenerative medicine (ABAARM), and I specialize in hormone optimization therapy and sexual health. I share what I’m learning with 200K+ followers on Instagram, and I’m an international keynote speaker. My first solo book, “The Female Longevity Curve,” publishes in early 2027.
