Compare by Product
A vendor’s overall rating reflects their whole catalog, but COA quality, batch evidence, and pricing differ peptide by peptide. Pick a product for its ranked table.
- Peptides
- 71
Peptides
- Categories
- 23
Categories
Synthetic peptide fragment
Compare top two: Zeptix Labs vs Peptix USA →Copper tripeptide
Compare top two: Zeptix Labs vs Southern Aminos →Growth-hormone secretagogue
Neuropeptide analog
Compare top two: Southern Aminos vs Amino Club →Melanocortin peptide
GLP-1 family (triagonist)
GLP-1 family (dual agonist)
Mitochondrial / cofactor
Bioregulator
Thymic / antimicrobial peptide
Growth hormone fragment
Small molecule
Amylin analog
Neuropeptide
Peptide hormone
Protein construct
Designed peptide
Tripeptide
Lab supplies
Product rankings, explained
How is each product's vendor ranking built?
Every vendor selling a given peptide is ordered by the lab-rule score of its certificate for that peptide (out of 10, the same rule that builds each vendor's lab sub-score), then by the vendor's published score, then alphabetically. Prices are shown but do not change the order, and there is no pay-to-rank placement.
Why does the same vendor score differently on different product pages?
A vendor's overall score reflects its whole catalog, but the certificate behind each peptide can differ, so each product page orders vendors first by the certificate for that peptide and only then by the vendor's overall score.
How often are product rankings updated?
Rankings refresh whenever a vendor's underlying data changes (new COA evidence, a price change, or an updated third-party testing status), the same audit cadence used for every vendor and comparison page sitewide.