Weight Loss
Peptides researched for appetite regulation, fat metabolism, and body composition improvement. Includes GLP-1 agonists and metabolic peptides. Each compound links to its full dosing protocol.
Research Use Only. All dosing information is for educational purposes. Consult a licensed healthcare provider before making health decisions.
Semaglutide
GLP-1 receptor agonist that reduces appetite, slows gastric emptying, and improves glycemic control. One of the most studied peptides for weight management with significant clinical trial data.
Route: Oral
Reconstitution: 2.0 mL bacteriostatic water → ~2.5 mg/mL concentration
Schedule: Weeks 1–4: 250 mcg → Weeks 5–8: 500 mcg → Weeks 9–12: 1000 mcg → Weeks 13–16: 1700 mcg
- Semaglutide vs Tirzepatide for Weight Loss in Adults With Overweight or Obesity — JAMA Intern Med, 2024
- Effect of Continued Weekly Subcutaneous Semaglutide vs Placebo on Weight Loss Maintenance in Adults With Overweight or Obesity: The STEP 4 Randomized Clinical Trial — JAMA, 2021
- Once-Weekly Semaglutide in Adults with Overweight or Obesity — N Engl J Med, 2021
Tirzepatide
Dual GLP-1/GIP receptor agonist that targets two incretin pathways simultaneously. Demonstrated significant weight reduction in clinical trials, often exceeding semaglutide results.
Route: Subcutaneous injection
Reconstitution: 2.0 mL bacteriostatic water → 2.5 mg/mL concentration
Schedule: Weeks 5–8: 5 mg 100 → Weeks 13–16: 10 mg 100 → Weeks 5–8: 5 mg 100 → Weeks 13–16: 10 mg 100
- Semaglutide vs Tirzepatide for Weight Loss in Adults With Overweight or Obesity — JAMA Intern Med, 2024
- Continued Treatment With Tirzepatide for Maintenance of Weight Reduction in Adults With Obesity: The SURMOUNT-4 Randomized Clinical Trial — JAMA, 2024
- Body composition changes during weight reduction with tirzepatide in the SURMOUNT-1 study of adults with obesity or overweight — Diabetes Obes Metab, 2025
Retatrutide
Triple agonist targeting GLP-1, GIP, and glucagon receptors. Next-generation obesity peptide with potentially greater weight loss efficacy through three complementary metabolic pathways.
Route: Subcutaneous injection
Reconstitution: 1.0 mL bacteriostatic water → ~5.0 mg/mL concentration
Cycle: Minimum 24 weeks; trials extended to 48 weeks
Schedule: Weeks 1–4: 2 mg 40 → Weeks 5–8: 4 mg 80 → Weeks 9–12: 6 mg 120 → Weeks 13+: 8 mg 160
- Triple-Hormone-Receptor Agonist Retatrutide for Obesity – A Phase 2 Trial — N Engl J Med, 2023
- Mechanisms of GLP-1 Receptor Agonist-Induced Weight Loss: A Review of Central and Peripheral Pathways in Appetite and Energy Regulation — Am J Med, 2025
- Obesity Phenotypes, Diabetes, and Cardiovascular Diseases — Circ Res, 2020
AOD-9604
Modified fragment of human growth hormone (hGH 177-191) that stimulates lipolysis and inhibits lipogenesis without affecting blood sugar or growth. Targeted fat metabolism peptide.
Route: Subcutaneous injection
Reconstitution: 3.0 mL bacteriostatic water → ~0.667 mg/mL (667 mcg/mL) concentration
Dose Range: 300–500 mcg once daily (gradual titration)
Cycle: 8–12 weeks; optional extension to 16 weeks
Schedule: Weeks 1–4: 300 mcg 45 → Weeks 5–12: 500 mcg 75 → Weeks 1–4: 300 mcg 18 → Weeks 5–12: 500 mcg 30
- Lipid Storage, Lipolysis, and Lipotoxicity in Obesity — Adv Exp Med Biol, 2024
- Activin E-ACVR1C cross talk controls energy storage via suppression of adipose lipolysis in mice — Proc Natl Acad Sci U S A, 2023
- Catecholamine-induced lipolysis in obesity — Int J Obes Relat Metab Disord, 1999
5-Amino-1MQ
Small molecule NNMT inhibitor that increases cellular energy expenditure by boosting NAD+ and SAM levels. Researched for reducing fat cell size and promoting metabolic activity.
Route: Oral
Reconstitution: 2.0 mL bacteriostatic water → 5 mg/mL concentration
Schedule: Weeks 5–6: 4 mg → Weeks 7–8: 5 mg → Weeks 5–6: 4 mg → Weeks 7–8: 5 mg
- Metabolically Healthy Obesity — Endocr Rev, 2020
- Subcutaneous and visceral adipose tissue: structural and functional differences — Obes Rev, 2010
- Adipose Tissue and Metabolic Health — Diabetes Metab J, 2023
Tesofensine
Triple monoamine reuptake inhibitor that suppresses appetite through serotonin, dopamine, and noradrenaline pathways. Originally developed as a neurological drug, repurposed for weight management.
Route: Subcutaneous injection or Oral
- Hallmarks of Appetite: A Comprehensive Review of Hunger, Appetite, Satiation, and Satiety — Curr Obes Rep, 2025
- Weight loss produced by tesofensine in patients with Parkinson’s or Alzheimer’s disease — Obesity (Silver Spring), 2008
- Acts of appetite: neural circuits governing the appetitive, consummatory, and terminating phases of feeding — Nat Metab, 2022
CagriSema
Fixed-dose combination of cagrilintide (amylin analog) and semaglutide (GLP-1 agonist). Dual-pathway approach targeting both satiety and glucose metabolism for enhanced weight loss.
Route: Subcutaneous injection
- Coadministered Cagrilintide and Semaglutide in Adults with Overweight or Obesity — N Engl J Med, 2025
- Cagrilintide-Semaglutide in Adults with Overweight or Obesity and Type 2 Diabetes — N Engl J Med, 2025
- Comparative effectiveness of GLP-1 receptor agonists on glycaemic control, body weight, and lipid profile for type 2 diabetes: systematic review and network meta-analysis — BMJ, 2024
All information is intended strictly for educational and research purposes. Not medical advice. Consult a licensed healthcare provider before making any health decisions.
