The claim
99%+ purity guaranteed on TB-500
What we found
Fine printThe reviewed lot T0101 read 99.301%, above the claim, but this is a February sample the shop supplied itself.
Freedom Diagnostics certificate for one lot; no endotoxin result on file for it.
Health Corners editorial team · Fact-checked · Updated
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Calculated from published specs and owner feedback
See all peptidesPublished specs and owner feedback, not a hands-on test.
Published features and owner comments · not a lab test.
Published features and owner comments · not a lab test.
From published features and owner comments · not a lab test.
Average of the independent owner-review sources listed below.
The published claim, then what we found. Live statuses. How we review
The claim
What we found
Fine printThe reviewed lot T0101 read 99.301%, above the claim, but this is a February sample the shop supplied itself.
The claim
What we found
Fine printThe lab runs a public lookup portal, yet this certificate carries no lookup code, so the match to the lab's record was not confirmed.
The claim
What we found
Fine printThe lab weighed one vial from the lot at 109% of label; a single vial says little about every vial.
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Plans listed on the Amino Club brand page. 5 have a published Health Corners score. All 9 plans

Lot-matched certificate from a named lab at the lowest price per mg.
$39.99 · price checked Nov 14, 2026
Read the review →
Two ILS lots with verify links and endotoxin shown, cheap per mg.
$69.99 · price checked Nov 14, 2026
Read the review →
ILS-verifiable lot with sterility and endotoxin lines, plus an in-house-looking second report.
$49.99 · price checked Nov 14, 2026
Read the review →Brand scores out of 10 · See all peptides
Where a score sits among everything scored in the same category:
Needs at least 2 scored in the category.
How we review →The average of independent owner-review sources (for example Reddit, Trustpilot and store reviews), weighted for volume and recency. A source with too few reviews is listed as “Not enough data” and left out.
How we review →Published features and terms (price, renewal, refunds, support and the category’s own criteria), each scored against written anchors. Calculated, not lab-tested.
How we review →