What peptides actually do — and how we use them clinically.
Peptides are short chains of amino acids that act as signaling molecules in the body — telling cells what to do, when to do it, and how much. Used correctly, they're a powerful adjunct to clinical care. Used carelessly, they're an expensive way to push physiology in directions you didn't actually want.
This is our working clinical reference for 32 peptides organized by what they actually do — metabolic, growth hormone axis, recovery, skin, immune, brain and mood, sexual wellness, and longevity. For each one: what it is, why we use it, who it's for, how long a course typically runs, whether we cycle it, and what foundational work has to be in place for it to work.
The clinical principles behind every protocol on this page.
Foundations first.
Every peptide on this page works better when sleep, protein, training, and stress regulation are in place. None of them work as well when those are missing. We do not put a patient on a peptide protocol to bypass the foundational work — we use peptides to amplify what the foundations are already doing.
Lab-guided when relevant.
GH-axis peptides require IGF-1 and metabolic monitoring. Thyroid signaling tools require a full thyroid workup. Anything that touches the metabolic or hormonal axes is sequenced around labs — drawn before, drawn after, interpreted in context.
Cycled, not continuous.
Most of these peptides are used in defined courses (commonly 4–12 weeks) followed by reassessment. Continuous indefinite use is uncommon in our practice. Cycling preserves response, gives us cleaner data on what's actually working, and respects the body's signaling rhythms.
Patient stratification.
Several peptides on this list are labeled as 'highly selected patients only' or 'not a starter wellness therapy' — that's deliberate. Some tools belong only in advanced protocols with close clinical oversight. We say so up front rather than bury it.
Honest about evidence.
The evidence base for peptide therapy is uneven. Some peptides (tesamorelin, PT-141 / Vyleesi) have FDA-approved indications. Others have strong mechanistic support but limited human outcome data. We tell you which is which — expectations are conservative where the data is thin.
No prescriptions on this page.
This guide is education. Prescriptions and protocols are decided one-on-one in consultation, after we've reviewed your history, labs, current medications, and goals. If a peptide on this page sounds relevant, the next step is a conversation, not a checkout button.
10 categories · 32 peptides.
Metabolic & Body Composition Support
Peptides used in structured metabolic programs — fat metabolism signaling, mitochondrial support, and the GH-axis tools we use when nutrition and training alone aren't moving the needle. Always layered on top of foundational work, never a substitute for it.
MOTS-C
NAD+ (both strengths)
Adipotide
AOD-9604 / CJC-1295 / Ipamorelin / MOTS-C (blend)
Tesamorelin
Tesamorelin / Ipamorelin / AOD-9604 / MOTS-C (blend)
Growth Hormone Axis — Sleep, Recovery, Body Composition
Tools that work through the body's own growth hormone signaling — supporting sleep depth, recovery capacity, and body composition. Layered protocols that respect physiologic GH pulsatility rather than override it.
Sermorelin
CJC-1295 / Ipamorelin
Hexarelin
Tesamorelin / Ipamorelin (blend)
Somatropin (hGH) — Prescription
IGF-LR3
Recovery & Repair — Muscle, Tendon, Joint, Gut Barrier
Tissue-recovery peptides used when conventional rehab and recovery aren't keeping pace with training load, injury, or healing demand. Always paired with the underlying physical therapy and progressive loading work.
BPC-157
TB-500
BPC-157 / TB-500 (blend) — both strengths
Skin, Hair & Aesthetic Longevity
Peptides supporting skin remodeling, healing, and aesthetic longevity. We use these as adjuncts to in-clinic procedures and medical-grade skincare — not as substitutes for the foundational skin care work.
GHK-Cu
GHK-Cu / TB-500 / BPC-157 / KPV (blend)
GHK-Cu / BPC-157 / TB-500 / Epithalon (blend)
Inflammation & Barrier Support
Targeted tools for inflammatory load and barrier function — used as part of root-cause work, not as a way to mask underlying triggers we should be identifying and addressing.
KPV
Immune Resilience
Immune-modulating peptides used selectively — for resilience and balanced signaling, not just "boosting." Always layered onto foundational immune support: sleep, vitamin D, protein, stress.
Thymosin Alpha-1 (Thymalfasin)
LL-37
Brain, Mood & Stress Resilience
Cognitive and stress-modulation peptides used selectively after we've ruled out the foundational drivers — sleep, thyroid, iron, glucose stability. Short courses, reassessed, individualized.
Semax
Selank
Selank / Semax
PE-22-28 (Mini-Spadin)
Sexual Wellness
Peptides used for libido, arousal, and sexual response — always after we've evaluated hormones, stress load, relationship factors, and underlying health conditions. These tools complement that work; they don't replace it.
PT-141 (Bremelanotide; Vyleesi is FDA-approved for HSDD in premenopausal women)
Oxytocin
Thyroid / Metabolic Signaling
Used inside a full thyroid workup — never as a shortcut around one. The fundamentals (full thyroid panel, ferritin, selenium, iodine status, cortisol) come first.
Thyrotopin
Advanced — Not Routine in General Wellness
These are not routine wellness or longevity tools. They appear here for educational completeness — patients reading the rest of the guide ask about them, and we want them to understand exactly where they sit in our practice.
PNC-27
SS-31 (Elamipretide)
Epithalon (Epitalon)
This guide is education, not a prescription.
Peptides are bioactive compounds. Some are FDA-approved for specific indications, some are used off-label in wellness practice with varying degrees of evidence, and some are appropriate only for highly selected patients under close clinician oversight. None of them are appropriate without a clinical evaluation.
Revitalize does not currently prescribe or dispense peptide therapy — many of the peptides on this page are pending FDA review or are restricted under current FDA compounding guidance. This page exists to give patients clinical-grade context on the peptide landscape so they can make informed decisions and have informed conversations with their treating clinician.
If something on this page maps to a problem you are trying to solve, a consultation with Travis is often the right next step — most often the answer involves the foundational hormone, metabolic, and recovery work we do directly provide, not peptide therapy itself.
Have questions about your situation?
Travis is happy to discuss the foundational work — sleep architecture, training, nutrition, and lab interpretation — that determines whether any of these tools would even be appropriate for your situation. For prescribing-related decisions on peptide therapy specifically, please see the regulatory notice at the top of this page and discuss with your treating clinician.