TitrateLab/Vendors/PeptideSupplyCo.com
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PeptideSupplyCo.com: Independent Lab Review (82 COAs Tested)
Lab-verified evidenceAn independent, evidence-first review of PeptideSupplyCo.com — wondering if PeptideSupplyCo.com is legit? Every number below is sourced from 82 third-party lab certificates of analysis, not vendor marketing. The headline trust stats are free; the batch-by-batch evidence, every certificate, pricing & stock are TitrateLab Pro.
Average purity
mean across 75 assayed batches
⚠ 2 batches underdosed — worst -72% vs labeled dose
Purity distribution
75 batches · ProCOAs tracked
82
third-party certs
In-spec rate
99%
2 underdosed · worst -72%
Compounds
52
distinct peptides
Coverage
2026-05 → 2026-06
first → latest test
The batch-by-batch distribution is a Pro feature
See every one of PeptideSupplyCo.com's 75 assayed batches plotted by purity around the 99.6% average — the real per-batch readings behind the headline stats.
Go Pro — $9/mo or $33 lifetimeDose distribution
66 batches dose-testedPurity tells you how clean the peptide is. Dose tells you how much you actually got — tested milligrams vs the labeled amount. A vial can be 99% pure and still badly underfilled, which never shows on the purity chart. On-target means within ±10% of label; anything outside (under or over) is off-target.
On-target
59%
within ±10% of label
Median
+6%
vs labeled dose
Worst underfill
-72%
2 batches <−10%
Worst overfill
+55%
25 batches >+10%
The batch-by-batch dose distribution is a Pro feature
See every one of PeptideSupplyCo.com's 66 dose-tested batches plotted by deviation from labeled dose — the real per-batch underfill/overfill behind the headline stats.
Go Pro — $9/mo or $33 lifetimeCompounds tested
52 distinctPeptides with at least one tracked certificate from this vendor. Tap a linked compound for the full research hub.
Recent certificates
82 total · showing 2A sample of the most recently tested batches. Each links to its full, public certificate page — purity, method, lab, and test date.
Inline purity on every batch is a Pro feature
The full certificate list below is free. Pro reads the measured purity, method, lab, and test date inline on every one of the 82 third-party batches TitrateLab tracks for PeptideSupplyCo.com — plus the batch-by-batch distribution and per-compound breakdown.
Go Pro — $9/mo or $33 lifetimeCertificates by compound
82 third-party COAs · 52 compoundsEvery third-party certificate of analysis TitrateLab tracks for PeptideSupplyCo.com, grouped by compound. Tap a thumbnail for the full certificate image; each links through to its public cert page — purity, method, lab, and test date.
GHK-Cu
Retatrutide
MOTS-C
Tirzepatide
Epithalon
Tesamorelin
5-Amino-1MQ
BPC-157
BPC-157 + GHK-Cu + TB-500
BPC-157 + TB-500
CJC-1295 + Ipamorelin
KPV
NAD+
Pinealon
SS-31
BPC-157 + GHK-Cu + KPV + TB-500
CJC-1295 w/ DAC
Ipamorelin + Tesamorelin
Lipo-B /ml
Methylcobalamin (B12)
Selank + Semax
Super-H /ml
Thymosin Alpha-1
Per-compound purity
mean purity by peptide · ProAverage assayed purity for each of 52 compounds — the batch-level breakdown behind the headline average. Tap the tile to unlock with Pro.
Per-compound purity is a Pro feature
See PeptideSupplyCo.com's average assayed purity for each of its 52 compounds — the batch-level breakdown behind the headline 99.6% average.
Go Pro — $9/mo or $33 lifetimeCommunity reviews
Pro-member sourcedUnlock PeptideSupplyCo.com's full lab evidence
The trust teaser above and the full certificate list are free & always will be. Unlock every batch's purity inline across all 82 certificates, the batch-by-batch purity distribution, the per-compound breakdown, plus live pricing, stock & the full Pro review thread.
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Frequently asked
purity & lab evidenceIs PeptideSupplyCo.com legit?
TitrateLab tracks 82 third-party lab certificates of analysis for PeptideSupplyCo.com, averaging 99.6% tested purity across 75 assayed batches, with 99% of those batches in spec on both purity (≥90%) and labeled dose (filled to within 10% of the labeled amount); 2 assayed batches were significantly underdosed (worst -72% vs the labeled amount) (tests dated 2026-05-01 to 2026-06-29). These are purity analytics from independent certificates, not vendor marketing — TitrateLab does not rank or endorse vendors, and this is research-use-only information, not a recommendation to purchase or use any product.
What is PeptideSupplyCo.com's average tested purity?
Across the 75 assayed batches TitrateLab tracks for PeptideSupplyCo.com, the mean third-party-tested purity is 99.6%. Purity is measured on the specific batches that were submitted for analysis and is not a guarantee for any other lot.
How many lab certificates does TitrateLab track for PeptideSupplyCo.com?
TitrateLab tracks 82 published third-party certificates of analysis for PeptideSupplyCo.com spanning 52 distinct compounds. Each certificate links to its own public page with the purity, test method, issuing lab, and test date.
What share of PeptideSupplyCo.com's tested batches are in spec on purity and dose?
99% of the 75 assayed batches TitrateLab tracks for PeptideSupplyCo.com (74 of 75) were in spec on BOTH tested purity (at or above 90%) and labeled dose (filled to within 10% of the labeled amount). 2 assayed batches were significantly underdosed against the label (worst -72%), so they are counted as out of spec even where tested purity was high. This reflects only the batches that were tested and is analytic information for research use, not a quality guarantee for any order.
Answers are derived from the third-party lab certificates TitrateLab tracks for this vendor and describe tested purity only. This is research-use-only information, not medical advice and not a recommendation to purchase or use any product.
How this is sourced. TitrateLab tracks certificates of analysis posted by the community and verified against the issuing lab. Purity, test dates, and compound names shown here are the same facts published on each public certificate page — aggregated, never edited. The in-spec rate counts a batch only when it clears both purity (≥90%) and labeled dose (filled to within 10% of label, where dose data exists); it reflects the batches that were tested and is not a guarantee of every order. Scores come only from lab data — no vendor pays for placement, and customer orders or Pro never move a grade. Browse the COA corpus →