Tirzepatide Microdose (Injections)
Activates both GLP-1 and GIP receptors.
Explore peptides
Peptide medications to support cellular health, muscle growth, and healthy aging.
Available treatments
Every option is reviewed and prescribed by a US-licensed physician. Choose a treatment to begin, or get a personalized recommendation.
Semaglutide Microdose (Injections)
Activates the GLP-1 pathway at lower doses.
Sermorelin (Injections)
Stimulates the pituitary gland's natural release of growth hormone.
Peptide Skin Complex (4-in-1)
Helps reduce fine lines, fade dark spots, and brighten skin tone.
Arousal Peptide (Nasal Spray)
Can activate brain pathways involved in desire and arousal.
Arousal Peptide (Injections)
Can activate brain pathways involved in desire and arousal.
Not sure where to start?
Get a RecommendationBuilt by longevity experts
Immortals was built by Bryan Johnson’s personal team of clinicians, based on population-level data and Bryan’s own longevity research.
Carl Seger, M.D.
Board-Certified Physician
Dr. Seger specializes in preventive and longevity medicine. He trained at the University of Washington School of Medicine, completed residency at the University of Utah as Chief Resident, and holds a fellowship in Medical Education. He helped create the Precision Medicine Training Program and is the former CEO of Wild Health.
Common questions