Peptides DB

Research-centric peptide and protocol reference hub

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.

Ranked by approved-study count. 10 peptides in this category.

IpamorelinWell Studied

Growth Hormone Secretagogue | Selective GHRP

### Summary Ipamorelin is a synthetic peptide that acts as a selective agonist of the growth hormone secretagogue receptor, primarily stimulating growth hormone release. Its potential therapeutic applications are being explored in various contexts, including weight management and pain modulation.

4 studiesDominant effect: muscle
SemaglutideFDA Approved

GLP-1 Receptor Agonist | Weight Loss & Diabetes

### 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.

4 studiesDominant effect: metabolic
HexarelinWell Studied

Examorelin | Synthetic Growth Hormone Secretagogue

### Hexarelin Summary Hexarelin is a synthetic hexapeptide that belongs to the growth hormone secretagogue (GHS) class, known for its ability to stimulate growth hormone release from the pituitary gland. It has been investigated for its potential therapeutic applications in various conditions, including muscle wasting and age-related decline in growth hormone levels.

4 studiesDominant effect: muscle
AOD-9604Well Studied

Modified hGH Fragment | Fat Loss Peptide

A GH-fragment–derived peptide primarily discussed for fat loss and body-composition change, sometimes with cartilage and joint-repair context.

4 studiesDominant effect: metabolic
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.

4 studies
SermorelinWell Studied

GHRH Analog | Growth Hormone Releasing Hormone

### Summary Sermorelin is a synthetic peptide that mimics growth hormone-releasing hormone (GHRH), stimulating the pituitary gland to produce and release endogenous growth hormone. It has been investigated for its potential therapeutic applications, particularly in the context of growth hormone deficiencies and other related conditions.

3 studiesDominant effect: muscle
TesamorelinFDA Approved

GHRH Analog | Visceral Fat Reduction

### Tesamorelin Summary Tesamorelin is a synthetic peptide that functions as a growth hormone-releasing hormone (GHRH) analog, primarily investigated for its potential to reduce visceral fat in individuals with HIV-associated lipodystrophy. Its role in metabolic health and body composition continues to be explored in various clinical contexts.

3 studiesDominant effect: metabolic
MOTS-CWell Studied

Mitochondrial-Derived Peptide | Metabolic Regulator

### Summary MOTS-C is a mitochondrial-derived peptide that has garnered attention for its potential roles in metabolic regulation and cellular stress responses. Emerging research suggests it may have implications in various health conditions, including cardiovascular diseases and placental function.

3 studies
TirzepatideFDA Approved

Dual GIP/GLP-1 Receptor Agonist | Weight Loss & Diabetes

### 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.

2 studiesDominant effect: metabolic
5-amino-1MQPreclinical

NNMT Inhibitor | Longevity & Metabolic Enhancement

Research-peptide often discussed for body recomposition: weight-loss–focused with muscle preservation, cholesterol and inflammation effects.

1 studyDominant effect: metabolic