Personalized Tirzepatide (Injections)
Can activate both GLP-1 and GIP receptors, the two gut hormones that signal appetite and satiety.
Lose weightExplore peptides
Sermorelin
From $118.93/mo$165/mo
An experimental peptide protocol. Stimulates the pituitary gland’s natural release of growth hormone. This can support fat loss and muscle gain.
HSA/FSA reimbursable
Founded by Bryan Johnson
No insurance required
Fast, discreet shipping
Licensed US pharmacies
Unlimited follow-up with licensed physicians
HSA/FSA reimbursable
No insurance required
Licensed US pharmacies
Founded by Bryan Johnson
Fast, discreet shipping
Unlimited follow-up with licensed physicians
$0
Membership fees
“Sermorelin is a peptide that prompts your body to release its own growth hormone in natural pulses. It works through the same mechanism as tesamorelin, an FDA-approved peptide that's been shown to shrink visceral fat. Sermorelin itself has never been tested in a clinical trial so using it for weight management is experimental and off-label.”
Why GHRH agonists
Growth hormone declines with age. GHRH agonists help restart the signal.
With GHRH agonist
Without GHRH agonist
Growth hormone slows with age
Growth hormone (GH) production declines ~14% per decade after age 30. The driver is declining GHRH output, not pituitary failure. Because the pituitary remains responsive, reintroducing the GHRH signal can restart GH production.
Source: Melmed S, NEJM (2019); Aimaretti et al., J Endocrinol Invest (2008)
Charts and graphics are illustrative representations intended to communicate published research findings and the known pharmacologic properties of the referenced medication. Visualizations may simplify, normalize, or model study data for educational purposes and should not be interpreted as guarantees of individual clinical outcomes or expected results.
HOW SERMORELIN WORKS
Stimulates natural growth hormone release.
Sermorelin prompts your pituitary gland to release growth hormone, supporting muscle growth, fat loss, sleep, and recovery.
Signals pituitary gland
Sermorelin acts on cells in the pituitary gland, mimicking signals your body naturally sends to release growth hormone.
Releases growth hormone
The pituitary releases your body's own growth hormone in its natural rhythm of pulses, the on-off pattern your body is designed to respond to.
Supports metabolism
Growth hormone circulates to the liver, where it stimulates IGF-1 production. They work together to support increased muscle mass, fat loss, sleep, recovery, and tissue repair.
How Immortals Medicine works
From intake to your door in three to seven days
Step 1Medical intake
Answer a guided set of questions covering your medical history, current medications, goals, and treatment preferences.
A few minutes
Step 2Doctor review
A U.S.-licensed, board-certified physician reviews your intake and recommends a medication, if appropriate.*
Within 72 hours
Step 3Fast shipping
Approved medications ship directly to your door in discreet packaging.
2-5 business days
Step 4Unlimited messaging
Your doctor is available by message any time for additional support. Video consults available.
Up to 12 months
Get Started
The same prescription framework as Bryan Johnson's medical team.
*Some states may require a synchronous audio and/or video consultation prior to a prescription being approved.
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Tirzepatide Microdose (Injections)
Activates both GLP-1 and GIP receptors.
Semaglutide Microdose (Injections)
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Why Immortals Medicine
Precision medicine protocols to support longevity
Proactive care
Doctor-led treatment plans designed around your goals. No wait lists. No insurance required.
Transparent pricing
No membership fees, no hidden costs. You pay only after a doctor prescribes treatment.
Board-certified doctors
Access to specialist physicians, licensed in your state. Unlimited messaging for up to 12 months.
Curated by longevity experts
Every protocol is built by medical experts, based on longevity research from Bryan Johnson's science team.
COMMON QUESTIONS
Questions, answered
Compounded medications are not FDA-approved, and the FDA does not evaluate them for safety, effectiveness, or quality prior to use. This page is intended for educational purposes only and is not intended to provide medical advice, diagnosis or treatment. Medication eligibility and prescriptions are determined solely by licensed medical providers based on clinical appropriateness. Not all individuals will qualify for medication-based treatment.