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Testagen
Best Testagen Vendors of 2026
Ranked by Price, Purity, and Reputation
3 vendors comparedfrom $2.80/mgCOA-verified sources only
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Quick Comparison
1Glacier AminosCOA
10/1020mg$3.40/mg
2Mile High CompoundsCOA
9.5/1025mg$2.80/mg
3Swiss ChemsShips WorldwideCOA
9/1020mg$3.00/mg
| Rank | Vendor | COA | Score | Doses |
|---|---|---|---|---|
| 1 | Glacier Aminos | Yes | 10/10 | |
| 2 | Mile High Compounds | Yes | 9.5/10 | |
| 3 | Swiss ChemsShips Worldwide | Yes | 9/10 |
Bulk Pricing
Per-vendor quantity breaks — pick a vial size to see the bulk price. Must purchase the full pack.
Glacier AminosCOA10% code thepeptidecatalog
as low as $2.29/mg$679.90$458.91Save 33%20mg × 10
$3.40/mg $2.29/mg · 25% pack discount + 10% with code
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How We Score Vendors
Our scoring is based on three weighted factors:
Price Competitiveness (40%)
Normalized to cost per milligram for fair comparisons across vial sizes.
COA Availability (30%)
Third-party lab testing confirming purity, identity, and absence of contaminants.
Vendor Reputation (30%)
Community feedback, shipping reliability, customer service, and business track record.