Single peptide
Recovery & RepairBPC-157
BPC-157 is represented in 5 mg and 10 mg formats, alongside separate pages for combinations containing BPC-157. Listed specification: 5 mg.
5 mgView guide
A LIBRARY FOR THE CURIOUS
Peptide research.
Made clear.
Explore peptide reference guides, understand the research, and make sense of the numbers. Your starting point for informed learning.
Structured reference guides Free learning tools
THE SCIENCE OF UNDERSTANDING REFERENCE SERIES
Explore the connectionsEvidence begins with a question.
Read. Understand. Explore. 122 reference entries Interactive calculation tools Education comes first
FIND YOUR STARTING POINT
Browse all guides Explore the research library
Well-organized references, one topic at a time.
Single peptide
Skin & LongevityGHK-Cu
GHK-Cu appears in 50 mg and 100 mg formats. The copper-associated name is preserved throughout the catalog. Listed specification: 100 mg.
100 mgView guide
Single peptide
Metabolic ResearchRetatrutide
Retatrutide has seven reference sizes, from 5 mg through 60 mg, organized under one compound family. Listed specification: 5 mg.
5 mgView guide
Single peptide
Metabolic ResearchRetatrutide
Retatrutide has seven reference sizes, from 5 mg through 60 mg, organized under one compound family. Listed specification: 20 mg.
20 mgView guide
THE RESEARCH NOTEBOOK
Good questions.
Better understanding.
Read the original source
Understand the limitations
Keep the context
CLARITY
OVER CLAIMS
OVER CLAIMS
MORE CONTEXT. LESS GUESSWORK.Research is complex.
Research is complex.
Finding your way shouldn’t be.
Clear structure makes a difference. Our library brings reference entries, foundational guides, and practical tools together in one place.
- Consistent, easy-to-navigate reference pages
- Space for primary sources and research limitations
- Useful tools that explain the numbers
BUILD YOUR FOUNDATION
All learning guides A little knowledge goes a long way.
New to the topic? These guides are a good place to begin.
01
A beginner’s guide to peptide research
Start with the essentials: terminology, evidence, and how to navigate a research paper.
Start learning 02Understanding reconstitution math
A straightforward introduction to mass, volume, and concentration.
Start learning 03A guide to units and measurements
Understand the difference between mass, volume, and device markings.
Start learningLET’S MAKE SENSE OF THE NUMBERSLess mental math.
Less mental math.
More clarity.
Explore the relationship between mass, volume, and concentration with our interactive calculator.
Try the calculatorCONCENTRATION, SIMPLIFIED
10 mg÷2 mL=5 mg/mL
A mathematical example. No dosing recommendation.
FROM THE JOURNAL
Visit the journal Keep asking good questions.
Perspectives and practical notes for thoughtful readers.
Recovery & Repair · Sep 20, 2026
Comparing single items, blends and stacks
Use the BPC-157 and TB-500 listings to understand three different catalog formats.
Read the storyBrain & Cognition · Sep 20, 2026
Following a citation without losing context
A practical reading workflow from catalog name to original publication.
Read the storyGrowth & Performance · Sep 20, 2026
DAC and no-DAC: preserve the full identifier
An editorial checklist for keeping CJC-1295 variants and combinations distinct.
Read the storyTHE RESEARCH COLLECTION
View all products →Explore the catalog
Find a specification. Compare the details. Ask us a question.
SINGLE · PA-010
BPC-157 · 5 mg vial
BPC-157 is represented in 5 mg and 10 mg formats, alongside separate pages for combinations containing BPC-157. Listed specification: 5 mg.
Price on request
View details →
SINGLE · PA-026
GHK-Cu · 100 mg vial
GHK-Cu appears in 50 mg and 100 mg formats. The copper-associated name is preserved throughout the catalog. Listed specification: 100 mg.
Price on request
View details →
SINGLE · PA-064
Retatrutide · 5 mg vial
Retatrutide has seven reference sizes, from 5 mg through 60 mg, organized under one compound family. Listed specification: 5 mg.
Price on request
View details →