Prism Peptides
Retatrutide
Retatrutide
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π΄ IMPORTANT: Read Before Proceeding With Dosing
For research and educational use only.
Always follow correct reconstitution and injection practices to avoid avoidable side effects.
β‘ RETATRUTIDE
Triple Agonist β’ Rapid Fat Loss β’ Metabolic Optimization
Retatrutide is the most comprehensive metabolic peptide currently under study, activating three key hormonal pathways involved in fat loss, metabolic balance, and energy regulation:
- GLP-1 β appetite suppression, insulin regulation
- GIP β glucose control, fat metabolism
- Glucagon β energy expenditure, lipolysis (fat breakdown)
By combining GLP-1, GIP, and glucagon agonism, Retatrutide advances beyond Semaglutide and Tirzepatide, delivering faster and deeper fat loss with broad systemic benefits.
βοΈ Mechanism of Action
| Pathway | Effect | Outcome |
|---|---|---|
| GLP-1 | Slows gastric emptying, reduces appetite | Eat less, feel fuller |
| GIP | Enhances insulin release, improves glucose tolerance | Better carb handling & energy balance |
| Glucagon | Increases metabolic rate, triggers fat oxidation | Faster fat loss, higher energy use |
π Clinical Effectiveness
| Peptide | Receptor Targets | Average Weight Loss | Duration |
|---|---|---|---|
| Semaglutide | GLP-1 | 17% | 68 weeks |
| Tirzepatide | GLP-1 + GIP | 24.7% | 72 weeks |
| Retatrutide | GLP-1 + GIP + Glucagon | 17.5% | 24 weeks |
| 26.2% | 48 weeks |
β‘οΈ Retatrutide currently shows the most rapid and sustained fat loss in clinical studies.
β¨ Additional Benefits
- Anti-inflammatory: may support rheumatoid arthritis & IBD
- Collagen support: improves tone, elasticity & skin tightening post-weight loss
- Wound healing: supports tissue recovery after injury
- Angiogenesis: promotes new blood vessel growth β better circulation
- Muscle regeneration: activates satellite cells for recovery & repair
π§ͺ Emerging Therapeutic Applications
(under investigation β research evolving)
| Category | Potential Benefit |
|---|---|
| Cardiovascular | Improved cholesterol, hypertension & inflammation markers |
| Liver | Promising for NAFLD reversal |
| Neurological | Parkinsonβs / Alzheimerβs research |
| Sleep & Addiction | Sleep apnea & substance use disorder studies |
β οΈ Possible Side Effects
Common (mildβmoderate, dose-dependent):
- Nausea, vomiting
- Constipation or diarrhea
- Headache, indigestion
- Abdominal discomfort
- Reduced appetite
- Dehydration
Rare but Serious:
- Gallbladder disease
- Pancreatitis
- Intestinal blockages
- Gastroparesis (delayed stomach emptying)Kidney strain linked to dehydration
β‘οΈ Side effects typically improve with hydration, slower titration, and nighttime dosing.
π‘ Side-Effect Management
| Issue | Strategy |
|---|---|
| Nausea | Dose at night, smaller meals |
| Constipation | Fiber + electrolytes |
| Appetite too low | Prioritize protein first |
| Strong adverse effects | Increase dose more slowly |
| High GI sensitivity | Avoid heavy & greasy foods |
π« Contraindications β Do NOT Use If:
- Pregnant or nursing
- Severe GI disorders (Crohnβs, IBD)Advanced liver disease or chronic kidney disease
- Active or family history of thyroid cancer / MEN-2
- Hypersensitivity to peptide-based medications
π General Dosing Guidelines
- Inject once weekly β same day every week
- Remain at each dose β₯ 4 weeks
- Increase only when progress plateaus
- Start dose depends on prior GLP use:
| Experience | Starting Dose |
|---|---|
| Never used GLP-1/GIP | 2 mg weekly |
| Used GLP previously & escalated at least once | 4 mg weekly |
β‘οΈ If still losing weight at your current dose β stay there until needed.
π Reconstitution & Dosing Protocols
Subcutaneous Administration β Dose Once Weekly (every 7 days)
Stay minimum 4 weeks per dose level before increasing.
If still losing at your current dose β you may stay longer before titrating up.
πΉ How to Determine Your Starting Dose
- New to GLP-based peptides: start 2 mg weekly
- Previously on a GLP and increased dose at least once: start 4 mg weekly
Dose at night if experiencing nausea, indigestion, or dizziness.
β Retatrutide Reconstitution & Unit Conversion
Quick Conversion Rule:
Units needed = (Desired mg Γ· mg-per-unit)
π§ͺ Retatrutide β 10 mg vial
Mix with: 1 mL (100 units) BAC water
Final concentration: 1 mg = 10 units
| Dose | Units |
|---|---|
| 2 mg | 20 units |
| 4 mg | 40 units |
| 6 mg | 60 units |
| 8 mg | 80 units |
| 10 mg | 100 units |
π§ͺ Retatrutide β 20 mg vialΒ
Mix with: 2 mL (200 units) BAC water
Final concentration: 1 mg = 10 units (same as 10 mg vial β just double volume)
| Dose | Units |
|---|---|
| 2 mg | 20 units |
| 4 mg | 40 units |
| 6 mg | 60 units |
| 8 mg | 80 units |
| 10 mg | 100 units |
| 12 mg | 120 units |
| 15 mg | 150 units |
| 20 mg | 200 units |
β This format keeps the same units-per-mg as the 10 mg vial, making titration easier
β Best choice if you want longer use between reconstitution cycles
β Recommended for users reacting strongly at higher concentration (less sting)
π§ͺ Retatrutide β 30 mg vial
Mix with: 2.5 mL (250 units) BAC water
Final concentration: 1 mg β 8.3 units
| Dose | Units |
|---|---|
| 2 mg | 16 units |
| 4 mg | 34 units |
| 6 mg | 50 units |
| 8 mg | 66 units |
| 10 mg | 84 units |
| 12 mg | 100 units |
π§ͺ Retatrutide β 40 mg vial
Mix with: 3 mL (300 units) BAC water
Final concentration: 1 mg = 7.5 units
| Dose | Units |
|---|---|
| 2 mg | 15 units |
| 4 mg | 30 units |
| 6 mg | 45 units |
| 8 mg | 60 units |
| 10 mg | 75 units |
| 12 mg | 90 units |
β Which Concentration Should I Choose?
| Vial | BAC Added | Concentration | Why Choose It |
|---|---|---|---|
| 10 mg | 1 mL | Most concentrated | Smallest injection volume |
| 20 mg | 2 mL | Medium β Recommended | Easiest math, smoother comfort |
| 30 mg | 2.5 mL | Less concentrated | Longer-term vial usage |
| 40 mg | 3 mL | Least concentrated | Best for sensitive injectors |
This chart uses Retatrutide 20 mg reconstituted with 2 mL BAC water
(1 mg = 10 units) β the easiest math for weekly use.
π Retatrutide Weekly Titration Schedule
Dose once every 7 days β stay on each step β₯ 4 weeks
β‘οΈ If still losing weight at your current dose β remain until plateau
β‘οΈ Increase only when needed for continued progress
π° Beginner Schedule (No prior GLP use)
(slow & gentle β lowest side-effect risk)
| Weeks | Weekly Dose | Units | Notes |
|---|---|---|---|
| 1β4 | 2 mg | 20 units | Initial adaptation / appetite suppression begins |
| 5β8 | 4 mg | 40 units | Increased satiety, fat loss ramps |
| 9β12 | 6 mg | 60 units | Moderate therapeutic range |
| 13β16 | 8 mg | 80 units | Strong appetite control |
| 17+ | 10 mg | 100 units | Go here only if needed |
β‘οΈ Most users do not need to exceed 8 mg if progressing steadily.
β‘ Intermediate Schedule (Prior GLP exposure)
(for users who already tolerated Semaglutide/Tirzepatide)
| Weeks | Weekly Dose | Units | Notes |
|---|---|---|---|
| 1β4 | 4 mg | 40 units | Easier transition from prior GLP |
| 5β8 | 6 mg | 60 units | Metabolic acceleration |
| 9β12 | 8 mg | 80 units | Max appetite blocking & fat oxidation |
| 13β16 | 10 mg | 100 units | For plateaus or stalled progress |
β‘οΈ If nausea / indigestion returns β drop back one level.
π Advanced Schedule (High tolerance, aggressive cut)
(ONLY if side effects are minimal and researcher experience is high)
| Weeks | Weekly Dose | Units | Notes |
|---|---|---|---|
| 1β4 | 4 mg | 40 units | Base activation |
| 5β8 | 6 mg | 60 units | Rapid fat loss onset |
| 9β12 | 8 mg | 80 units | Main working phase |
| 13β16 | 10 mg | 100 units | Push phase β expect stronger appetite suppression |
| 17β20 | 12 mg | 120 units | Short-term max phase (not required for all)** |
β‘οΈ 12 mg should only be used if absolutely necessary.
β‘οΈ Most clinical benefit occurs between 6β10 mg.
π§ Side-Effect Adaptive Adjustment
Use this if symptoms flare:
| Symptom | Adjustment |
|---|---|
| Nausea / vomiting | Dose at night β reduce 2 mg β increase hydration |
| Constipation | Add fiber & electrolytes β do NOT increase dose until resolved |
| Fatigue | Increase protein intake β 1β2 g/kg/day |
| Plateau | Stay at current dose 2β4 more weeks before stepping up |
| Injection discomfort | Add 20β50 units of BAC water to syringe to dilute |
π‘ Stacking Suggestions by Phase
| Phase | Stack | Why |
|---|---|---|
| Weeks 1β4 | BPC-157 | GI relief, gut adaptation |
| Weeks 5β8 | AOD-9604 | Increases fat mobilization |
| Weeks 9β12 | Tesamorelin | Visceral fat + muscle preservation |
| Weeks 12+ | GHK-Cu | Skin tightening after fat loss |
π₯ Cagrilintide can be added at any stage for enhanced satiety + hunger control
(dose on separate day β slow titration)
π― Quick Reference
- 1 mg = 10 units
- Increase only after 4+ weeks at each doseHigher dose β always better β progress > power
- If losing steadily, donβt increase

