GLP-1 receptor agonist
Semaglutide
GLP-1 receptor agonist commonly discussed for glycemic control and weight management.
Standard Peptides
PEPTIDE
CLINICAL
REFERENCE
Evidence-focused peptide database: GLP-1s, healing peptides, dosing education, protocols, and research tools.
What this site is
Standard Peptides is an independent educational reference covering 105 research peptides and related compounds — from approved medicines like semaglutide to preclinical compounds like BPC-157. Entries are graded by evidence tier and substantive claims link to primary sources: peer-reviewed journals, ClinicalTrials.gov records, and regulator labels. Nothing is sold here; the goal is an accurate, readable account of what the evidence shows — and where it stops.
01 — Compounds
FEATURED COMPOUNDS
Dual GIP/GLP-1 receptor agonist
Tirzepatide
Dual GIP/GLP-1 receptor agonist frequently discussed for type 2 diabetes and obesity.
Triple GIP/GLP-1/glucagon receptor agonist
Retatrutide
Investigational triple agonist targeting GIP, GLP-1, and glucagon receptors.
Synthetic peptide fragment
BPC-157
Synthetic peptide fragment often discussed for tissue healing and GI-related effects.
Thymosin beta-4 fragment
TB-500 (Thymosin Beta-4 fragment)
Product name covering the actin-binding fragment of thymosin beta-4 — and, in some vials, the full-length protein — discussed for tissue repair.
Copper peptide
GHK-CU
Naturally occurring copper-binding tripeptide with a topical cosmetic evidence base for skin appearance and essentially no human safety data as an injectable.
Melanocortin receptor agonist
PT-141
Melanocortin receptor agonist approved as Vyleesi for hypoactive sexual desire disorder in premenopausal women.
Growth hormone secretagogue (ghrelin receptor agonist)
Ipamorelin
Selective growth hormone secretagogue and ghrelin-receptor (GHS-R1a) agonist whose corporate clinical program was discontinued.
Growth hormone secretagogue
MK-677 (Ibutamoren)
Orally active ghrelin-receptor agonist and growth hormone secretagogue studied for raising growth hormone and IGF-1.
Growth hormone peptide blend
CJC-1295 + Ipamorelin
Vendor blend pairing a GHRH analog with a selective ghrelin-receptor agonist; the combination itself has never been tested in a published human trial.
02 — Classes
BROWSE BY CLASS
GLP-1 / incretin
7 entriesSemaglutide, tirzepatide, retatrutide, and related incretin-based agents for glucose regulation and weight management.
Class overview
Healing / anti-inflammatory
9 entriesBPC-157, TB-500, thymosin alpha-1, and other compounds studied for tissue repair and immune modulation.
Class overview
GH / growth factors
16 entriesSecretagogues and GHRH analogs — ipamorelin, CJC-1295, tesamorelin — plus IGF-1 variants and related hormones.
Class overview
Neuro / nootropic / cosmetic
11 entriesSemax, Selank, PT-141, epitalon, and other centrally acting or cosmetic peptides.
Class overview
Metabolic / mitochondrial / small molecules
10 entriesMOTS-c, SS-31, NAD+, 5-amino-1MQ, and related compounds studied in metabolic and mitochondrial research.
Class overview
Other injectables
52 entriesGHK-Cu, glutathione, oxytocin, and other injectables that sit outside the main classes.
Class overview
03 — Tools
RESEARCH TOOLS
Peptide Calculator
Reconstitution math: concentration and syringe draw units.
Half-Life Plotter
Visualize decay and accumulation curves over time.
Syringe Simulator
Interactive visual guide to U-100 syringe markings.
Unit Converter
mg ↔ mcg mass conversions with IU context.
BMI Calculator
The height/weight categorization used in clinical trials.