Peptide Abbreviations Glossary
Peptide research is filled with abbreviations and acronyms that can be confusing to newcomers. This glossary decodes the most common shorthand used in studies, protocols, vendor listings, and community discussions.
Key Takeaways
- Peptide names are often abbreviations hinting at origin or function (BPC = Body Protection Compound).
- Dosing abbreviations like SubQ, ED, EOD, and BID are standard in protocols and community discussions.
- CoA abbreviations (HPLC, MS, MW) help you understand quality testing documentation.
- Regulatory abbreviations (FDA, TGA, EMA) identify the governing body relevant to your jurisdiction.
- Bookmark this glossary for quick reference when encountering unfamiliar abbreviations.
Peptide Name Abbreviations
Many peptides are known primarily by their abbreviations rather than full names. Understanding what each abbreviation stands for provides insight into the peptide origin or function.
- 1.BPC - Body Protection Compound (as in BPC-157)
- 2.TB - Thymosin Beta (as in TB-500, from thymosin beta-4)
- 3.GHK - Glycyl-Histidyl-Lysine (the tripeptide copper complex GHK-Cu)
- 4.CJC - A research code designation (CJC-1295 is a modified GHRH analog)
- 5.GLP-1 - Glucagon-Like Peptide-1 (the hormone mimicked by semaglutide)
- 6.GIP - Glucose-dependent Insulinotropic Polypeptide (co-target of tirzepatide)
- 7.AOD - Advanced Obesity Drug (AOD-9604 is a GH fragment)
- 8.MOTS-c - Mitochondrial Open reading frame of the Twelve S rRNA type-c
- 9.PT-141 - A clinical trial designation (bremelanotide)
- 10.FOXO4-DRI - FOXO4 D-Retro-Inverso (a senolytic peptide)
Administration and Dosing Abbreviations
These abbreviations appear in dosing protocols and injection instructions. Knowing them helps you correctly interpret research protocols and community discussions.
- 1.SubQ / SC - Subcutaneous (injection into fat layer below skin)
- 2.IM - Intramuscular (injection into muscle tissue)
- 3.IV - Intravenous (injection directly into a vein, rare in peptide research)
- 4.mcg - Microgram (one millionth of a gram)
- 5.mg - Milligram (one thousandth of a gram)
- 6.mL - Milliliter (one thousandth of a liter)
- 7.IU - International Unit (standardized measure of biological activity)
- 8.BAC water - Bacteriostatic water
- 9.ED - Every day (daily dosing)
- 10.EOD - Every other day (alternate day dosing)
- 11.BID - Twice daily (from Latin bis in die)
- 12.QD - Once daily (from Latin quaque die)
Testing and Quality Abbreviations
These abbreviations appear on Certificates of Analysis and in discussions about product quality and verification.
- 1.CoA - Certificate of Analysis
- 2.HPLC - High Performance Liquid Chromatography (purity testing method)
- 3.MS - Mass Spectrometry (identity confirmation method)
- 4.MALDI-TOF - Matrix-Assisted Laser Desorption/Ionization Time-of-Flight (a type of MS)
- 5.ESI - Electrospray Ionization (another MS method)
- 6.MW - Molecular Weight
- 7.EU/mL - Endotoxin Units per milliliter (contamination measure)
- 8.USP - United States Pharmacopeia (quality standards organization)
- 9.GMP - Good Manufacturing Practice (production quality standard)
Biological and Pharmacological Abbreviations
These abbreviations describe biological processes, targets, and pharmacological concepts relevant to understanding how peptides work.
- 1.GH - Growth Hormone
- 2.GHRH - Growth Hormone Releasing Hormone
- 3.GHRP - Growth Hormone Releasing Peptide
- 4.IGF-1 - Insulin-like Growth Factor 1
- 5.HPA axis - Hypothalamic-Pituitary-Adrenal axis
- 6.ACTH - Adrenocorticotropic Hormone
- 7.FDA - Food and Drug Administration (US regulatory body)
- 8.TGA - Therapeutic Goods Administration (Australian regulatory body)
- 9.EMA - European Medicines Agency
- 10.MHRA - Medicines and Healthcare products Regulatory Agency (UK)
Frequently Asked Questions
What is the difference between GHRH and GHRP?
GHRH (Growth Hormone Releasing Hormone) and GHRP (Growth Hormone Releasing Peptide) both stimulate growth hormone release but through different mechanisms. GHRH acts on the GHRH receptor in the pituitary to directly stimulate GH synthesis and release. GHRP acts on the ghrelin receptor (GHS-R) to amplify GH release. CJC-1295 is a GHRH analog; ipamorelin is a GHRP. They are often combined for synergistic effects.
What does DAC mean in CJC-1295 with DAC?
DAC stands for Drug Affinity Complex. It is a chemical modification that allows CJC-1295 to bind to albumin in the bloodstream, dramatically extending its half-life from approximately 30 minutes to 6-8 days. CJC-1295 without DAC (also called Modified GRF 1-29) has the shorter half-life and requires more frequent dosing, but produces more natural pulsatile GH release patterns.
What does the number after a peptide name mean?
Numbers after peptide names usually indicate either a research sequence number (BPC-157 was the 157th compound in a series), a fragment position (AOD-9604 relates to amino acids 176-191 of growth hormone), or a molecular descriptor. Some numbers are arbitrary designations assigned during drug development (CJC-1295, PT-141). The numbers do not typically indicate potency or version.