What You Will Find Here
The internet has no shortage of peptide content — much of it written to rank rather than to inform. This hub is our attempt at the opposite: accurate, referenced, readable answers to the questions researchers, students and formulators actually type into search engines, organized into ten topic areas. Whether you want a simple definition of a polypeptide, need to understand what tirzepatide and retatrutide are, or are comparing peptide companies and vendor reviews, start below.
Peptide Science Education
What are polypeptides and dipeptides? How do peptide bonds form? Protein structure levels, the 20 standard amino acids, and biology-lab answers explained simply.
GLP-1 & Metabolic Peptides
Tirzepatide, retatrutide, semaglutide, tesamorelin and the glucagon-like peptide-1 family: mechanisms, research status and compound comparisons.
Peptide Suppliers & Reviews
How to read peptide vendor names — from Peptide Sciences and Amino Asylum to Nexaph, Arcane and Paramount — and the due-diligence framework that works for any company.
Testing Labs & Quality
Janoshik, Finnrick and third-party peptide testing: what a real COA contains, purity versus net content, and how to spot fabricated documentation.
Reconstitution & Handling
Bacteriostatic versus sterile water, reconstitution math, syringe conversions, peptide fridge life and freeze-dried peptide storage for laboratory use.
Collagen Peptides & Supplements
Hydrolyzed collagen peptides, marine versus bovine sources, and how to compare the major supplement brands on the shelf.
Skincare & Cosmetic Peptides
Matrixyl 3000, copper peptide GHK-Cu, peptide serums and lip treatments: what the formulation science actually supports.
Hair & Scalp Peptides
Copper tripeptides, GHK-Cu scalp research and peptide-based hair serums: evidence status and research directions.
Clinical & Pharmaceutical Peptides
FDA-approved peptide drugs, compounding debates, natriuretic and hypothalamic peptide hormones, and clinical reference ranges.
Industry & Manufacturing
Peptide synthesis companies, CDMOs like Bachem and CPC Scientific, Chinese peptide suppliers, grey-market dynamics and the USA manufacturing base.
Topic Directories
Beyond the core guides, the hub includes eleven topic directories with 1,300+ focused reference pages, each answering a single search question with the same evidence-based standard:
- GLP-1 & Metabolic Peptides — tirzepatide, semaglutide, retatrutide and related research
- Peptide Supplier Reviews — vendor evaluation frameworks and company questions
- Skincare & Cosmetic Peptides — serums, creams and cosmetic actives
- Peptide Science Education — polypeptides, peptide bonds and biochemistry fundamentals
- Research Peptides — BPC-157, TB-500, melanotan and catalog compounds
- Collagen Peptides — supplements, sources and clinical evidence
- Peptide Industry & Manufacturing — suppliers, synthesis companies and the global market
- Peptide Testing & Quality — COAs, third-party labs and purity verification
- Reconstitution & Dosing Guides — solvents, calculations and storage
- Hair & Lash Peptides — GHK-Cu and follicle research
- Peptide-Adjacent Topics — lookalike search terms and disambiguation
Editorial Policy
Every guide is written or reviewed by degreed chemists, separates research findings from speculation, and names third-party companies only in a neutral, informational context. We do not publish sponsored reviews, and nothing in the hub constitutes medical advice. Products sold by Vendors COMPP are for in vitro research use only.