Peptides DB
Research-centric peptide and protocol reference hub
Metabolic & appetite

Best peptides for Weight Loss

GLP-1 receptor agonists (Semaglutide, Tirzepatide, Retatrutide), amylin receptor agonists (Cagrilintide), and growth-hormone-axis peptides (Tesamorelin, AOD-9604, HGH Fragment 176-191) are the most-studied weight-loss compounds in the peptide library. This hub ranks each by research volume and trial phase, then links to the full per-peptide research profile.

46
peptides matched
Ranked by approved-study count
Semaglutide: Healing 1.0, Muscle 0.0, Metabolic 5.0, Neuro 1.0, Sleep 0.0, Immune 1.0, Skin 4.0Healing & recovery — 1.0 / 5Metabolic & appetite — 5.0 / 5Neuro & mood — 1.0 / 5Inflammation & immune — 1.0 / 5Skin & aesthetics — 4.0 / 5
SemaglutideFDA Approved

GLP-1 receptor agonist | Type 2 diabetes and obesity

### Semaglutide Summary Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist that has been investigated for its role in managing type 2 diabetes and obesity. Its efficacy in promoting weight loss and improving glycemic control has garnered significant attention in recent clinical research.

26 studiesDominant effect: metabolicFull profile →
NAD+ (Nicotinamide Adenine Dinucleotide): Healing 4.0, Muscle 2.0, Metabolic 5.0, Neuro 3.0, Sleep 2.0, Immune 4.0, Skin 1.0Healing & recovery — 4.0 / 5Muscle & body comp — 2.0 / 5Metabolic & appetite — 5.0 / 5Neuro & mood — 3.0 / 5Sleep & circadian — 2.0 / 5Inflammation & immune — 4.0 / 5Skin & aesthetics — 1.0 / 5

Essential Cellular Coenzyme & Anti-Aging Therapy

### Summary NAD+ (Nicotinamide adenine dinucleotide) is a crucial coenzyme involved in various metabolic processes, including energy production and cellular repair mechanisms. Recent research highlights its potential roles in protecting against oxidative stress and enhancing therapeutic efficacy in certain cancer treatments.

22 studiesDominant effect: metabolicFull profile →
SS-31: Healing 3.0, Muscle 2.0, Metabolic 4.0, Neuro 3.0, Sleep 1.0, Immune 4.0, Skin 0.0Healing & recovery — 3.0 / 5Muscle & body comp — 2.0 / 5Metabolic & appetite — 4.0 / 5Neuro & mood — 3.0 / 5Sleep & circadian — 1.0 / 5Inflammation & immune — 4.0 / 5
SS-31Well Studied

Mitochondrial-Targeted Peptide | Cardiolipin Protector

### Summary SS-31, also known as Elamipretide, is a peptide that has garnered attention for its potential role in mitochondrial protection and its implications in various health conditions, particularly those involving oxidative stress and mitochondrial dysfunction.

19 studiesDominant effect: inflammationFull profile →
PE 22-28: Healing 1.0, Muscle 0.0, Metabolic 3.0, Neuro 0.0, Sleep 0.0, Immune 2.0, Skin 0.0Healing & recovery — 1.0 / 5Metabolic & appetite — 3.0 / 5Inflammation & immune — 2.0 / 5
PE 22-28Limited Research

Metabolic regulation | Vascular health

### Summary PE 22-28 is a peptide that has garnered attention in various research contexts, particularly in relation to vascular health and metabolic conditions. Its potential implications in gestational diabetes and placental function are areas of ongoing investigation.

17 studiesDominant effect: metabolicFull profile →
Tirzepatide: Healing 0.0, Muscle 0.0, Metabolic 5.0, Neuro 0.0, Sleep 0.0, Immune 0.0, Skin 1.0Metabolic & appetite — 5.0 / 5Skin & aesthetics — 1.0 / 5
TirzepatideFDA Approved

GIP/GLP-1 Agonist | Type 2 Diabetes and Obesity

### Summary Tirzepatide is a novel dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist that has been investigated for its potential in managing type 2 diabetes and obesity. Its unique mechanism of action aims to enhance glycemic control and promote weight loss.

12 studiesDominant effect: metabolicFull profile →
Erythropoietin (EPO): Healing 4.0, Muscle 1.0, Metabolic 3.0, Neuro 2.0, Sleep 0.0, Immune 1.0, Skin 0.0Healing & recovery — 4.0 / 5Muscle & body comp — 1.0 / 5Metabolic & appetite — 3.0 / 5Neuro & mood — 2.0 / 5Inflammation & immune — 1.0 / 5
Erythropoietin (EPO)Extensively Studied

EPO | Red Blood Cell Stimulating Hormone

Erythropoietin (EPO) is a glycoprotein hormone that stimulates red blood cell production in bone marrow, used clinically for anemia and studied in hematology and metabolic research.

12 studiesDominant effect: healingFull profile →
Showing the 6 most-studied of 46 matches

Related reading

Dosing for approved agents comes from the label, not from this site. If you are working out injection volumes, the reconstitution calculator converts mg per vial into syringe units, and how to use peptides covers storage and handling. Neither is a recommendation to use anything.

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Medical disclaimer

Rankings reflect how much indexed research exists, not how safe or effective anything is for you. Nothing here is medical advice. Most peptides on this site are not approved drugs.