Guides
Handling & research guides
Reconstitution, storage, stability and how to read a certificate of analysis. Written for the bench, and for laboratory research use only.
Research Materials
KPV Peptide (Lys-Pro-Val): Structure and Research Overview
KPV is the Lys-Pro-Val tripeptide from the C-terminus of alpha-MSH. Its structure, formula, published lab studies and storage. Research use only.
Research Materials
GHK-Cu (Copper Tripeptide): Chemistry and Research Overview
GHK-Cu is the copper(II) complex of the tripeptide Gly-His-Lys. Its structure, formula, copper binding, lab studies and storage. Research use only.
Research Materials
Selank (TKPRPGP): Chemistry and Research Overview
Selank is the synthetic heptapeptide Thr-Lys-Pro-Arg-Pro-Gly-Pro. Its structure, formula, stability, lab assays and storage. Research use only.
Testing & Certificates
Ipamorelin as a Research Material: Sequence, Mass and What a Certificate Can Confirm
A bench-level look at ipamorelin's pentapeptide structure, formula and mass, and how HPLC and mass spectrometry results on a certificate relate to identity.
Testing & Certificates
GLP-2 (tirzepatide) as a Research Material: Structure, Mass Figures and What a Certificate Should Show
A bench-level look at the lipidated 39-residue structure of tirzepatide, why complete-molecule and backbone-only masses differ, and how identity is read from an LC-HRMS and HPLC report.
Testing & Certificates
GLP-3 (Retatrutide) as a Research Material: Structure, Identity Testing and Handling
A bench-level look at the lipidated structure of retatrutide, how a certificate confirms its identity by LC-HRMS and HPLC, and how to handle a lipopeptide of this size.
Testing & Certificates
BPC-157 as a Research Material: Sequence, Mass, Certificate Identity Tests and Bench Handling
A bench-level look at the BPC-157 sequence and mass, how a certificate confirms identity by HPLC and mass spectrometry, what LC-MS work says about in vitro breakdown products, and how to store and handle the material.
Lab Practice
How to Interpret Chromatogram Peaks, Areas and Retention Times
A quick guide for researchers on reading basic chromatographic data.
Lab Practice
Understanding Net Peptide Content Versus Gross Vial Mass
How to accurately determine the usable peptide amount in a vial by accounting for counterions, water and other non-peptide mass.
Testing & Certificates
Understanding What HPLC Purity Tells You (and What It Misses)
A brief guide to interpreting HPLC purity data and its limitations for peptide analysis.
Testing & Certificates
How to Verify Peptide Identity Using a Reference Standard
A step-by-step guide for confirming peptide identity against a certified reference material in the lab.
Lab Practice
How to Choose a Syringe for Accurate Small-Volume Measurements
Matching capacity, material and tip design to the volume range you actually work in, and what a tolerance figure on a datasheet is telling you.
Storage & Handling
Why Lyophilized Peptides Ship at Room Temperature (and When Cold Matters)
Why vials leave dry, at room temperature, with no ice or cold packs - and where cold does matter: in the freezer on arrival, and in the fridge once reconstituted.
Storage & Handling
Why Light and Moisture Matter: Proper Sealing of Vials for Sensitive Materials
Understanding how light and moisture affect peptide stability and how sealed vials protect your samples.
Storage & Handling
Managing Freeze-Thaw Cycles and Aliquoting for Peptide Stability
Limit freeze-thaw events and use proper aliquoting to keep peptide samples functional in the lab
Storage & Handling
Why research peptides are shipped as lyophilized powder
Lyophilisation protects peptide integrity during transport and storage
Lab Practice
Reducing Error When Measuring Microliter Volumes
Pre-wetting, trapped air, temperature and maintenance — the handling steps that decide whether a well-chosen syringe actually delivers its rated accuracy.
Reconstitution
How to calculate the concentration of a reconstituted peptide vial
Step-by-step guide to determine the exact concentration after reconstitution for reliable in-vitro experiments
Testing & Certificates
Why Batch-to-Batch Testing Matters for Research Peptides
Understanding why testing each production lot provides more reliable data than a single product certificate.
Storage & Handling
Best Practices for Storing Lyophilized Peptides: Freezer, Refrigerator, and Bench
Guidelines for keeping lyophilized peptides stable by choosing the right temperature and protecting them from moisture and light.
Storage & Handling
Reconstitution water vs sterile water: practical differences for the bench
A concise guide to choosing and handling bacteriostatic and sterile water in laboratory workflows.
Reconstitution
How to Reconstitute a Lyophilized Peptide Safely
Step-by-step guidance for restoring lyophilized peptides while preserving activity and purity.
Looking for a specific compound?
These guides cover bench technique — reconstitution, storage, certificates and measurement — and apply to whatever is in the vial. Sequence, residue composition and molecular weight for an individual compound live in the peptide library.
These guides cover bench handling of research materials. They do not describe an application, benefit, dose, route or outcome, and nothing in them should be read as guidance for use in a person or an animal.