TitrateLab/Vendors/Porter Peptides
▸ Vendor trust profile
Porter Peptides: Independent Lab Review (29 COAs Tested)
Lab-verified evidenceAn independent, evidence-first review of Porter Peptides — wondering if Porter Peptides is legit? Every number below is sourced from 29 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 28 assayed batches
Purity distribution
28 batches · ProCOAs tracked
29
third-party certs
In-spec rate
100%
purity ≥90% + on-dose
Compounds
21
distinct peptides
Coverage
2026-05 → 2026-06
first → latest test
The batch-by-batch distribution is a Pro feature
See every one of Porter Peptides's 28 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
21 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
33%
within ±10% of label
Median
+14%
vs labeled dose
Worst underfill
-1%
0 batches <−10%
Worst overfill
+31%
14 batches >+10%
The batch-by-batch dose distribution is a Pro feature
See every one of Porter Peptides's 21 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
21 distinctPeptides with at least one tracked certificate from this vendor. Tap a linked compound for the full research hub.
Recent certificates
29 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 29 third-party batches TitrateLab tracks for Porter Peptides — plus the batch-by-batch distribution and per-compound breakdown.
Go Pro — $9/mo or $33 lifetimeCertificates by compound
29 third-party COAs · 21 compoundsEvery third-party certificate of analysis TitrateLab tracks for Porter Peptides, 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.
Retatrutide
Tirzepatide
MOTS-C
BPC-157 + GHK-Cu + KPV + TB-500
BPC-157 + GHK-Cu + TB-500
BPC-157 + KPV + TB-500
BPC-157 + TB-500
Choline/Carnitine/Arginine/Methionine//Pantothenic Acid (B5)/Pyridoxine (B6)/Cyanocobalamin (B12)
CJC-1295 + Ipamorelin
CJC-1295 + Ipamorelin + Tesamorelin
Thymosin Alpha-1
Per-compound purity
mean purity by peptide · ProAverage assayed purity for each of 21 compounds — the batch-level breakdown behind the headline average. Tap the tile to unlock with Pro.
Per-compound purity is a Pro feature
See Porter Peptides's average assayed purity for each of its 21 compounds — the batch-level breakdown behind the headline 99.6% average.
Go Pro — $9/mo or $33 lifetimeCommunity reviews
Pro-member sourcedUnlock Porter Peptides'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 29 certificates, the batch-by-batch purity distribution, the per-compound breakdown, plus live pricing, stock & the full Pro review thread.
Instant access · cancel anytime · no pay-to-rank, ever
Frequently asked
purity & lab evidenceIs Porter Peptides legit?
TitrateLab tracks 29 third-party lab certificates of analysis for Porter Peptides, averaging 99.6% tested purity across 28 assayed batches, with 100% of those batches in spec on both purity (≥90%) and labeled dose (filled to within 10% of the labeled amount) (tests dated 2026-05-28 to 2026-06-24). 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 Porter Peptides's average tested purity?
Across the 28 assayed batches TitrateLab tracks for Porter Peptides, 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 Porter Peptides?
TitrateLab tracks 29 published third-party certificates of analysis for Porter Peptides spanning 21 distinct compounds. Each certificate links to its own public page with the purity, test method, issuing lab, and test date.
What share of Porter Peptides's tested batches are in spec on purity and dose?
100% of the 28 assayed batches TitrateLab tracks for Porter Peptides (28 of 28) were in spec on BOTH tested purity (at or above 90%) and labeled dose (filled to within 10% of the labeled amount). 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 →