Research Library

Research Peptide Guides

In-depth, plain-language guides written for qualified researchers. Every guide is framed strictly around in vitro Research Use Only context - regulatory background, quality documentation, and laboratory handling principles.

What "Research Use Only" Means For Peptides

A plain-language explanation of the Research Use Only (RUO) designation for peptides: what it covers, why it exists, and how it differs from FDA-approved pharmaceuticals.

How To Read A Peptide Certificate Of Analysis (COA)

A field guide to the Certificate of Analysis that accompanies research peptides: what purity, mass spectrometry, HPLC, and identity data mean, and how to verify a COA.

Research Peptide Storage, Reconstitution, And Handling

General laboratory principles for storing, reconstituting, and handling lyophilized research peptides to preserve stability and integrity for in vitro work.

Research Peptides vs. Pharmaceutical Peptides: The Regulatory Distinction

How research-grade peptides differ from pharmaceutical peptides in regulation, manufacturing, documentation, and permitted use, even when the chemical name is identical.

Understanding Peptide Purity In Research

What peptide purity means, how HPLC and mass spectrometry quantify it, why net peptide content differs from chromatographic purity, and why it matters for reproducible research.

Peptide Research Areas Explained

An overview of the major research areas peptides are studied in - metabolic, tissue repair and recovery, growth and longevity, cognitive, and skin and cosmetic science.

GLP-1 Receptor Agonists In Research: Semaglutide, Tirzepatide, And Retatrutide

A research overview of the incretin-mimetic peptide class - GLP-1 and dual GIP/GLP-1 receptor agonists such as Semaglutide, Tirzepatide, and Retatrutide - and how they are studied.

BPC-157 Research Overview

A research-context overview of BPC-157, one of the most studied peptides in tissue-repair research: what it is, the pathways it is studied in, and its Research Use Only status.

Growth Hormone Secretagogues Explained

A research overview of the growth hormone secretagogue class - GHRH analogues and ghrelin-receptor agonists such as Sermorelin, CJC-1295, and Ipamorelin - and how they are studied.

How Research Peptides Are Synthesized

A plain-language overview of solid-phase peptide synthesis (SPPS), why sequence fidelity and purification matter, and how synthesis quality shows up in a Certificate of Analysis.

Tirzepatide vs. Semaglutide: A Research Comparison

A neutral, research-context comparison of Tirzepatide and Semaglutide - how the dual GIP/GLP-1 agonist and the GLP-1 agonist differ in receptor targets, mechanism, and how each is studied. Research use only.

BPC-157 vs. TB-500: A Research Comparison

A research-context comparison of BPC-157 and TB-500 (Thymosin Beta-4) - the two anchor compounds of tissue-repair research: what each is, how their mechanisms differ, and why they are often studied together. Research use only.

Understanding Peptide Half-Life In Research

What peptide half-life means, how it is measured and reported, why it varies so widely between compounds, and how modifications extend it - a plain-language pharmacokinetics primer for research context.

Peptide Receptor Targets Explained

What a receptor target is, what it means for a peptide to be an agonist, and why receptor targets are the most useful way to organize and compare research peptides. A plain-language primer for research context.

How To Evaluate Peptide Research Evidence

A practical primer on evaluating peptide research: the difference between in vitro, in vivo, and clinical evidence, what evidence tiers mean, and how to read the strength of the literature behind a compound.

TB-500 And Thymosin Beta-4 In Research: Mechanisms And Applications

A research-context overview of TB-500 and its parent molecule Thymosin Beta-4, covering actin regulation, cell migration, angiogenesis pathways, and comparative research with BPC-157.

Ipamorelin And CJC-1295 As A Research Stack: Synergistic Growth Hormone Secretagogue Combinations

An in-depth research overview of the Ipamorelin and CJC-1295 combination, examining complementary GHRP and GHRH mechanisms, receptor targets, and how the stack is studied in vitro.

Epithalon In Longevity And Telomere Research

A research-context overview of Epithalon, a synthetic tetrapeptide studied in longevity and telomere biology, covering telomerase activation, pineal function, and aging model research.

GHK-Cu Copper Peptide In Regenerative And Skin Research

A research overview of GHK-Cu, the glycine-histidine-lysine copper complex studied in collagen synthesis, wound healing, antioxidant, and skin biology research contexts.

Selank And Semax In Nootropic And Neuroscience Research

A research overview of Selank and Semax, two synthetic neuropeptides developed in Russia and studied for anxiolytic, nootropic, and BDNF-modulating activities in neuroscience research.

PT-141 (Bremelanotide) And The Melanocortin Receptor System In Research

A research overview of PT-141 (Bremelanotide), a melanocortin receptor agonist derived from Melanotan II, studied in sexual behavior pharmacology and melanocortin system research.

How To Reconstitute Research Peptides: Bacteriostatic Water, Sterile Water, And Acetic Acid

A laboratory reference guide to reconstituting lyophilized research peptides, covering solvent selection, concentration calculation, gentle handling technique, and storage after reconstitution.

Research Peptide Stability: Temperature, Light, And Long-Term Storage Science

The science behind research peptide stability: how temperature, light, oxygen, moisture, and pH affect degradation rates, and what storage conditions best preserve lyophilized and reconstituted peptides.

AOD-9604 And Lipolytic Mechanisms In Metabolic Research

A research overview of AOD-9604, a synthetic fragment of human growth hormone studied for beta-3 adrenergic receptor-mediated lipolysis and adipose tissue biology in metabolic research.

Collagen-Stimulating Peptides In Extracellular Matrix And Wound Healing Research

An in-depth research overview of how peptides such as GHK-Cu and BPC-157 are studied in extracellular matrix biology, collagen synthesis, matrix metalloproteinase regulation, and wound healing models.

Weight Management Research Peptides: GLP-1 Agonists, GIP Dual Agonists, And Lipolytic Agents

A comprehensive research overview of the peptide classes studied in weight management biology, including GLP-1 agonists, dual GIP/GLP-1 agonists, triple agonists, and lipolytic fragments.

Intranasal Peptide Delivery Systems In Research: Mechanisms, Absorption, And Stability Considerations

A research overview of intranasal peptide delivery as studied in pharmacokinetics and neuropharmacology research, covering nasal anatomy, absorption pathways, and stability challenges.

Mitochondrial Peptides In Research: MOTS-c And SS-31

A research overview of two distinct classes of mitochondrial peptide: MOTS-c, a mitochondrial-derived peptide that signals through AMPK, and SS-31 (elamipretide), a mitochondria-targeted tetrapeptide that binds cardiolipin. Mechanisms, distinctions, and in vitro context. Research use only.

Thymosin Alpha-1 In Immune Research

A research overview of Thymosin Alpha-1 (Ta1), a 28-amino-acid thymic peptide studied for immune modulation through Toll-like receptor signaling, T-cell maturation, and dendritic-cell activation. How it differs from Thymosin Beta-4. Research use only.

Cagrilintide And Amylin-Receptor Research In Weight Management

A research overview of Cagrilintide, a long-acting amylin analog studied for satiety and metabolic signaling through amylin and calcitonin receptors, and how amylin-based research complements GLP-1 receptor agonists. Research use only.

Tesamorelin: A Stabilized GHRH Analog In Metabolic Research

A research overview of Tesamorelin, a stabilized growth-hormone-releasing hormone (GHRH) analog studied for its effect on endogenous growth hormone, IGF-1, and visceral adipose tissue. How it differs from growth hormone secretagogues. Research use only.

Follistatin And Myostatin Inhibition In Muscle Research

A research overview of Follistatin, a glycoprotein that binds and neutralizes myostatin and activin, and how myostatin inhibition is studied in models of muscle growth and wasting. Research use only.

KPV: An Alpha-MSH Tripeptide In Anti-Inflammatory Research

A research overview of KPV, the C-terminal tripeptide of alpha-melanocyte-stimulating hormone, studied for anti-inflammatory activity through intracellular NF-kB modulation. Research use only.

LL-37: The Human Cathelicidin In Host-Defense Research

A research overview of LL-37, the only human cathelicidin-derived antimicrobial peptide, studied for direct membrane-disrupting antimicrobial activity and immunomodulatory host-defense functions. Research use only.

NAD+ In Cellular Energy And Longevity Research

A research overview of NAD+ (nicotinamide adenine dinucleotide), the central redox coenzyme and substrate for sirtuins and PARPs, and how its age-related decline is studied in energy-metabolism and longevity research. Research use only.

DSIP (Delta Sleep-Inducing Peptide) In Sleep And Stress Research

A research overview of DSIP, a nine-amino-acid neuropeptide studied for slow-wave sleep regulation, stress-axis modulation, and neuroprotection, and why its mechanism remains an open research question. Research use only.

Sermorelin In Growth-Hormone-Axis Research

A research overview of Sermorelin, the GHRH(1-29) analog that represents the shortest fully active fragment of growth-hormone-releasing hormone, studied for pulsatile endogenous growth-hormone release. How it compares to Tesamorelin and CJC-1295. Research use only.

5-Amino-1MQ And NNMT Inhibition In Metabolic Research

A research overview of 5-Amino-1MQ, a small-molecule NNMT inhibitor studied for its effect on NAD+ salvage, cellular methylation, and adipocyte energy metabolism in obesity research. Research use only.

VIP (Vasoactive Intestinal Peptide) In Immune And Neuroscience Research

A research overview of VIP, a 28-amino-acid neuropeptide studied for immunomodulation and neuroprotection through the VPAC1 and VPAC2 receptors. Mechanism, receptor system, and research context. Research use only.