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Educational resource · All compounds discussed are for laboratory research use only · Not for human or veterinary use

Handbook

Research guides

Original ENOS Med educational chapters. Information and reference only — no medical advice, no dosing, and no human-use guidance.

Chapter 1

Introduction to Peptide Chemistry

Overview
Peptides are chains of amino acids linked by amide (peptide) bonds. Their size sits between small molecules and proteins, giving them high target specificity alongside challenges in stability and delivery.
Mechanism (high level)
Side-chain chemistry, charge and hydrophobicity determine folding, receptor recognition and susceptibility to enzymatic breakdown.
Regulatory status
Peptide chemistry itself is a field of study; regulatory status depends on each specific compound.
Research materials at ENOS Labs

Chapter 2

Structure, Sequence & Synthesis

Overview
Primary sequence defines a peptide; secondary structures such as helices and turns shape how it binds targets.
Mechanism (high level)
Solid-phase peptide synthesis (SPPS) builds chains residue by residue on a resin; modifications like cyclization, lipidation and non-natural amino acids are used to study stability.
Regulatory status
Synthesis methods are research techniques, not regulated products.
Research materials at ENOS Labs

Chapter 3

GLP-1, GIP & Glucagon Receptor Agonists

Overview
Incretin-pathway peptides are among the most actively studied in metabolic research, ranging from single to triple receptor agonists.
Mechanism (high level)
These molecules activate G-protein-coupled receptors involved in insulin secretion, appetite signaling and energy expenditure.
Regulatory status
Semaglutide and tirzepatide are FDA-approved prescription drugs available only via licensed prescribers. Retatrutide remains investigational.
Research materials at ENOS Labs

Chapter 4

Growth Hormone Secretagogues & GHRH Analogs

Overview
This class includes GHRH analogs and ghrelin-receptor agonists studied for their effects on pituitary signaling.
Mechanism (high level)
GHRH analogs act on the GHRH receptor; secretagogues such as ipamorelin act on the ghrelin receptor (GHSR-1a).
Regulatory status
Compounds such as CJC-1295 and ipamorelin are investigational and not approved for human use.
Research materials at ENOS Labs

Chapter 5

Recovery Peptides (BPC-157, TB-500) — Investigational

Overview
BPC-157 and TB-500 are frequently discussed in tissue-repair research, though the evidence base is predominantly preclinical.
Mechanism (high level)
Studies examine effects on angiogenesis, cell migration and growth-factor signaling in cell and animal models.
Regulatory status
Both are investigational and not approved by the FDA for human use. Research supply is for laboratory use only.
Research materials at ENOS Labs

Chapter 6

Longevity, NAD+ & Mitochondrial Signaling

Overview
Aging research investigates how cellular energy metabolism and repair pathways change over time.
Mechanism (high level)
NAD+ is a coenzyme for redox reactions and a substrate for sirtuins and PARPs; mitochondria-derived peptides are another area of study.
Regulatory status
Research-grade compounds in this area are not approved drugs and are sold for laboratory use only.
Research materials at ENOS Labs

Chapter 9

Storage & Analytical Standards

Overview
Reliable research depends on verified identity and purity of starting material.
Mechanism (high level)
HPLC measures purity by separating components; mass spectrometry confirms molecular weight. A lot-specific, third-party Certificate of Analysis documents both. Lyophilized peptides are generally stored cold, dry and protected from light.
Regulatory status
Analytical standards are good laboratory practice; they do not change a compound's regulatory status.
Research materials at ENOS Labs

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