Research Vendor

Harbor Labs

Name: Harbor Labs — lab testing record
Creator: PeptideBase
License: https://peptidebase.io/methodology

Online VendorUnited Statesharborlabsusa.com ↗

5 compounds tested

Visit vendor site ↗Jump to lab record

COAs on file: 5
Independently confirmed: 0
Median purity: 99.62%
At or above market: 4/5
Most recent: 7 Jun

harborlabsusa.com · registry record not yet fetched · first indexed by us 26 Aug 2026 · listing active

Research use only. This vendor supplies peptides for laboratory and research purposes — not for human consumption or therapeutic use. PeptideBase does not endorse or guarantee product quality. Verify third-party lab testing before any research use.

Vendor's own wordPublishes 3 of 6 disclosure signals — 1 document-backed, 2 vendor-stated · checked 1 Sept 2026

Vendor-supplied · Not verified by PeptideBase

What this vendor publishes about itself, repeated here. Disclosure is not verification; only independent lab results change that.

5 certificates on file, all self-published by the vendor. Median purity 99.62%, against 99.68% across all 928 certificates we score. Four of five compounds test at or above their market median. The exception is a BPC-157 lot at 99.20% — 0.52 points below the 99.72% median for that compound.

Where this evidence comes from

5 self-published: COAs the vendor posted on their own site.

Purity vs market

Every certificate, placed against the median for its own compound across all 928 results we score.

3 of 5 results sit within ±0.4 points of their market median.

Lab-sourcedSelf-published

Lab testing record

Every COA we hold for Harbor Labs.

How these certificates can be checked

Of the 5 certificates we hold for Harbor Labs:

5No lookup reference on the report

					Panel	Source	Reference
BPC-157	Freedom Diagnostics	7 Jun 26	99.20%	−0.52	—	Self-published	View COA ↗
Freedom Diagnostics publishes a report lookup. This certificate does not carry a reference we can use with it.
TB-500	Freedom Diagnostics	7 Jun 26	99.86%	+0.41	—	Self-published	View COA ↗
Freedom Diagnostics publishes a report lookup. This certificate does not carry a reference we can use with it.
MOTS-c	Freedom Diagnostics	7 Jun 26	99.46%	+0.05	—	Self-published	View COA ↗
Freedom Diagnostics publishes a report lookup. This certificate does not carry a reference we can use with it.
NAD+	Freedom Diagnostics	7 Jun 26	99.81%	+0.26	—	Self-published	View COA ↗
Freedom Diagnostics publishes a report lookup. This certificate does not carry a reference we can use with it.
Tesamorelin	Freedom Diagnostics	7 Jun 26	99.62%	+0.18	—	Self-published	View COA ↗
Freedom Diagnostics publishes a report lookup. This certificate does not carry a reference we can use with it.

5 certificates

The lab behind these results

Freedom Diagnostics

Self-published

Results: 5
Median: 99.62%
Window: Jun

All recognised labs →969 certificates scored · 42 vendors

In the vendor's own words

Written by the vendor · Not verified by PeptideBase

Harbor Labs is a United States online vendor supplying research-use-only peptides through a Shopify storefront. It publishes a per-batch certificate of analysis on some of its product pages, naming Freedom Diagnostics as the testing laboratory, and prints that laboratory’s own search code on each certificate so a reader can look the record up independently.

#Testing disclosure

Publishes COAsVendor-stated: Yes
COA accessVendor-stated: Published on the vendor’s website
Named lab(s)Vendor-stated: Freedom Diagnostics
Last observedOur record: 1 Sept 2026
Batch numbers shownOur record: Yes

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Profile last updated September 1, 2026

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Free to reference and republish with attribution to PeptideBase. Choose a format:

PeptideBase. (2026). Harbor Labs — Research Vendor Profile. Retrieved September 11, 2026, from https://peptidebase.io/research-vendors/harbor-labs

https://peptidebase.io/research-vendors/harbor-labs Methodology License Download JSON