Rapamycin Peptide
Also known as: mTOR Modulator, Sirolimus, Rapamune
Rapamycin peptide is a potent mTOR pathway inhibitor originally developed as an immunosuppressant that has gained attention for its potential anti-aging and longevity benefits.
Rapamycin Peptide is a 914.18 g/mol research peptide. Rapamycin peptide is a potent mTOR pathway inhibitor originally developed as an immunosuppressant that has gained attention for its potential anti-aging and longevity benefits.
Also called: mTOR Modulator, Sirolimus, Rapamune
914.18 g/mol
Molecular Weight
Daltons
2
Strong Evidence
benefits
5
Studies Cited
peer-reviewed
1-6
Typical Dose
mg
Overview
Rapamycin peptide targets the mechanistic target of rapamycin (mTOR) pathway, a central regulator of cell growth, metabolism, and aging processes. Originally discovered from the bacterium Streptomyces hygroscopicus on Easter Island, rapamycin blocks mTORC1 signaling by binding to FKBP12 and forming a complex that inhibits mTOR kinase activity. This inhibition triggers autophagy, reduces protein synthesis, and shifts cellular metabolism toward maintenance rather than growth. Research demonstrates rapamycin's ability to extend lifespan in multiple species, improve healthspan markers, and potentially delay age-related diseases. The compound's unique mechanism makes it one of the most studied anti-aging interventions, though its immunosuppressive properties require careful dosing protocols for longevity applications.
Key Takeaways: Rapamycin Peptide
- Strongest evidence supports Rapamycin Peptide for lifespan extension and enhanced autophagy
- Research doses typically range from 1 to 6 mg via oral
- 2 benefits with strong evidence, 4 moderate, 1 preliminary
- Half-life: 62 hours
- 5 cited research studies in this guide
Mechanism of Action
Rapamycin binds to the intracellular protein FKBP12, forming a complex that specifically inhibits mTORC1 (mechanistic target of rapamycin complex 1). This inhibition blocks the phosphorylation of downstream targets including S6K1 and 4E-BP1, reducing protein synthesis and cell growth while promoting autophagy. The resulting metabolic shift enhances cellular maintenance processes, reduces oxidative stress, and may slow aging by optimizing the balance between anabolic and catabolic pathways.
Research Benefits
Rapamycin Peptide at a Glance
Rapamycin binds to the intracellular protein FKBP12, forming a complex that specifically inhibits mTORC1 (mechanistic target of rapamycin complex 1).
Lifespan Extension
Strong EvidenceRapamycin consistently extends lifespan in multiple species including mice, flies, and worms by 10-25%. The compound delays age-related pathology and extends both median and maximum lifespan, making it one of the most robust longevity interventions identified.
Enhanced Autophagy
Strong EvidencemTORC1 inhibition directly activates autophagy pathways, promoting cellular cleanup of damaged organelles and misfolded proteins. This enhanced autophagy may protect against neurodegenerative diseases and improve cellular function during aging.
Improved Metabolic Health
Moderate EvidenceRapamycin treatment improves glucose tolerance, enhances insulin sensitivity, and promotes metabolic flexibility. These effects may protect against type 2 diabetes and metabolic syndrome, though results can vary based on dosing protocols.
Cardiovascular Protection
Moderate EvidencemTOR inhibition reduces vascular inflammation, improves endothelial function, and may slow arterial aging. Studies show rapamycin can reduce atherosclerosis progression and improve cardiac function in aging models.
Neuroprotection
Moderate EvidenceRapamycin crosses the blood-brain barrier and may protect against neurodegenerative diseases through enhanced neuronal autophagy and reduced tau pathology. Research suggests potential benefits for Alzheimer's disease and cognitive aging.
Cancer Prevention
Moderate EvidencemTOR pathway inhibition reduces cancer risk by suppressing tumor growth signals and promoting apoptosis in abnormal cells. Rapamycin shows promise as a cancer prevention strategy, particularly for age-related malignancies.
Immune System Modulation
PreliminaryLow-dose rapamycin may enhance immune function in older adults by promoting T-cell memory formation while reducing chronic inflammation. This differs from high-dose immunosuppressive effects seen in transplant medicine.
Research Dosing Protocols
Research Purposes Only: All content is for informational and research purposes only. This site does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before using any peptide or supplement.
| Research Protocol | Dose Range | Route |
|---|---|---|
| Longevity/Anti-aging | 1–6 mg | oral |
| Metabolic Research | 2–10 mg | oral |
Frequency
Once weekly to 3x weekly
Timing
With or without food, maintain consistent timing
Cycle Length
Intermittent protocols preferred - 3 months on, 1 month off
Research Notes
- 1Start with lowest effective dose to assess tolerance
- 2Weekly dosing may provide benefits while minimizing side effects
- 3Monitor blood glucose and lipid levels regularly
- 4Avoid continuous daily dosing for longevity applications
- 5Consider drug holidays to prevent tolerance
Reconstitution Guide
Standard Reconstitution
Vial Size
0 mg
Bacteriostatic Water
0 mL
Concentration
NaN mcg
per 0.1 mL (10 units)
Step-by-Step Guide
Gather Materials
Rapamycin Peptide vial, bacteriostatic water, alcohol swabs, insulin syringes.
Equilibrate Temperature
Remove the vial from storage and allow it to reach room temperature (5-10 minutes).
Sanitize
Swab the rubber stopper of both the peptide vial and bacteriostatic water vial with alcohol.
Draw Water
Draw 0 mL of bacteriostatic water into a syringe.
Add Water to Vial
Insert the needle into the peptide vial and direct the water stream against the glass wall — not directly onto the powder.
Mix Gently
Swirl the vial gently until the powder is fully dissolved. Never shake. The solution should be clear and colorless.
Store Properly
Refrigerate at Room temperature. 2-3 years.
Storage Temperature
Room temperature
Shelf Life
2-3 years
Important Notes
- •Rapamycin is typically available as oral tablets or capsules
- •Store in original packaging away from light and moisture
- •Lipid-based formulations may improve absorption
- •Injectable forms require specialized pharmaceutical preparation
Rapamycin Peptide Dosing Calculator
Calculate daily intake, cycle totals, and vials needed with pre-filled protocols →
Rapamycin Peptide Reconstitution Calculator
Calculate concentration, syringe units, and doses per vial with auto-filled values →
Safety & Side Effects
Reported Side Effects
- !Mouth ulcers and oral lesions
- !Increased infection risk due to immunosuppression
- !Elevated blood glucose and insulin resistance
- !Hyperlipidemia and increased triglycerides
- !Delayed wound healing
- !Fatigue and weakness
- !Gastrointestinal upset including diarrhea
- !Thrombocytopenia (low platelet count)
- !Proteinuria (protein in urine)
- !Potential male fertility effects
Potential Interactions
- ⚡CYP3A4 inhibitors (ketoconazole, grapefruit juice) increase rapamycin levels significantly
- ⚡CYP3A4 inducers (rifampin, St. John's Wort) decrease rapamycin effectiveness
- ⚡Live vaccines should be avoided due to immunosuppressive effects
- ⚡ACE inhibitors may increase risk of angioedema when combined with mTOR inhibitors
- ⚡Strong interaction with cyclosporine requiring dose adjustments
Important: Side effects and interactions listed here are compiled from published research and community reports. This is not a complete list. No formal drug interaction studies have been conducted for most research peptides. Always consult a qualified healthcare provider.
Research Studies
The following studies are referenced in this profile. PubMed IDs are provided where available for independent verification.
Rapamycin extends life span of middle-aged mice
Landmark study showing rapamycin extended lifespan by 14% in female mice and 9% in male mice when treatment began at 20 months of age, equivalent to 60 human years.
mTOR inhibition alleviates mitochondrial disease in a mouse model of Leigh syndrome
Demonstrated rapamycin's ability to improve mitochondrial function and extend survival in a mouse model of mitochondrial disease through enhanced autophagy.
Rapamycin improves Alzheimer's disease-like cognitive and pathological deficits
Showed rapamycin reduced amyloid pathology and improved cognitive function in Alzheimer's disease mouse models through enhanced autophagy clearance.
Low-dose rapamycin extends lifespan and delays age-related pathology in middle-aged mice
Found that even low-dose rapamycin treatment significantly extended lifespan and reduced age-related pathology without major adverse effects.
Rapamycin-induced insulin resistance is mediated by mTORC2 loss
Identified that rapamycin's metabolic side effects result from chronic mTORC2 inhibition, suggesting intermittent dosing may avoid these issues.
Note: This is not an exhaustive list of all published research. Studies are selected for relevance and quality. Click PubMed IDs to verify sources independently. Inclusion does not imply endorsement of the peptide for any clinical use.
Frequently Asked Questions
Research suggests 1-6mg weekly may provide anti-aging benefits while minimizing side effects. Most longevity-focused protocols use 5-6mg once weekly, though individual response varies significantly.
Cellular autophagy increases within days, but measurable health benefits typically appear after 2-3 months of consistent use. Longevity benefits accumulate over years of treatment.
Daily dosing increases side effect risk and may cause metabolic dysfunction. Weekly or intermittent protocols are preferred for longevity applications to maintain benefits while reducing adverse effects.
Yes, regular monitoring of glucose, lipids, kidney function, and blood counts is recommended. Most protocols suggest testing every 3-6 months during treatment.
Long-term safety data in healthy individuals is limited. While animal studies are promising, human longevity studies are ongoing. Careful medical supervision is essential.
Grapefruit and grapefruit juice significantly increase rapamycin blood levels and should be avoided. High-fat meals may enhance absorption but timing should remain consistent.
Rapamycin may slow aging processes and improve healthspan, but it doesn't reverse existing age-related damage. Benefits include enhanced cellular maintenance and delayed age-related pathology.
Rapamycin has the strongest lifespan extension data across species, but also carries more side effect risk than compounds like metformin or resveratrol. It's considered more potent but requiring careful management.
Research & Educational Use Only
All content is for informational and research purposes only. This site does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before using any peptide or supplement.
The information presented here is compiled from published research studies and is intended for informational purposes only. Individual results may vary. Always consult with a licensed healthcare provider.