Precision Medicine Starts With Understanding Peptides
A free, clinician-developed guide to understanding peptide therapy, how it works, what to expect, and how to personalize it for your goals.
This guide reflects current best practices in an evolving field. We update our recommendations regularly as new guidelines emerge.
The benefits of peptides
- RECOVERY & PERFORMANCE
- WEIGHT LOSS & METABOLIC HEALTH
- hormone support 
& athleticism
- INCREASE ENERGY
- DECREASE INFLAMMATION
- REPAIR & RECOVERY
- COGNITIVE HEALTH 
& CLARITY
What you’ll learn
What peptides are and how they function
The core benefits of peptide therapy, from metabolism to cognition
How peptides are delivered (injections, sprays, creams, capsules)
What to expect from a personalized protocol at Extension Health
How our process works, from consultation to reorder
Book $250 consult,
Get $250 credit
Tailored to your biology.
Meet 1:1 with a clinician—virtually or in-person—to build a custom peptide plan for fat loss, inflammation reduction, and optimized performance. Credit applies to orders over $500.
- Enhances Muscle Growth
- Regulates Metabolism
- Reduces Inflammation
- Boosts Cognitive Function
- + more
what our patients are saying
"Peptide therapy wasn’t even on my radar until I came to Extension, but it’s ended up being one of the most impactful parts of my routine. I’m recovering faster, staying more consistent with training, and just operating at a higher level day to day."
Alex
"I was introduced to Peptide injections, which are excellent for skin, hair, joints and bone support. I feel so much better since I started taking this."
Lori
"The BPC+ TB4 peptide has helped me turn back the clock by 10 years, helping bring collagen and volume back to my face, and reduce skin laxity. My friends keep telling me I'm aging backwards. Who needs filler and botox when you have peptides?"
Cindy
Precision, Not Guesswork
At Extension Health, we don’t chase trends: We validate best practices. The field of peptide therapeutics is advancing quickly, and while this guide reflects today’s best science, our research team continuously refines protocols as new data emerges. We believe in empowering you with transparent, responsible information and offering access to the most advanced tools available for optimizing your protocol.
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Extension Health Founder & Chief Medical Officer
Regenerative & Longevity Medicine Specialist
Meet Dr. Jonathann Kuo, MD
Extension Health Founder & Chief Medical Officer
Regenerative & Longevity Medicine Specialist
For over 15 years, Dr. Kuo has harnessed cutting-edge clinical advancements to help 50,000+ patients improve their quality of life.
Medical Director
Meet Dr. James Salway, MD
Medical Director
Dr. James Salway is a highly accomplished, board-certified Emergency Medicine physician and public health system administrator with a diverse skill set spanning regenerative medicine, clinical operations, quality improvement, and telehealth.