TitrateLab/Vendors/PTA
Find a batch from PTA▸ Vendor trust profile
PTA: Independent Lab Review (68 COAs Tested)
Lab-verified evidenceAn independent, evidence-first review of PTA — wondering if PTA is legit? Every number below is sourced from 68 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 58 assayed batches
⚠ 3 batches underdosed — worst -39% vs labeled dose
Purity distribution
58 batches · ProCOAs tracked
68
third-party certs
In-spec rate
95%
3 underdosed · worst -39%
Compounds
22
distinct peptides
Coverage
2025-10 → 2026-08
first → latest test
Dose distribution
13 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
15%
within ±10% of label
Median
+17%
vs labeled dose
Worst underfill
-39%
3 batches <−10%
Worst overfill
+36%
8 batches >+10%
Compounds tested
22 distinct · 68 certsGrouped by class, most-tested first. Tap any compound to expand its PTA certificate archive. Certificate details remain obscured until Pro.
No compound matches .
- NAD+ 5
- BPC-157 + GHK-Cu + KPV + TB-500 2
- CJC-1295 + Ipamorelin 1
Certificate archive
68 third-party COAs · ProThe evidence count and headline aggregates are public. Individual certificates and batch-level results require TitrateLab Pro.
Unlock all 68 certificates
Open the full archive with certificate images, labs, test dates, measured purity, dose accuracy, and the batch-by-batch history for PTA.
Go Pro — $12/mo or $33 lifetimePer-compound purity
mean purity by peptide · ProAverage assayed purity for each of 22 compounds — the batch-level breakdown behind the headline average. Tap the tile to unlock with Pro.
Community reviews
Pro-member sourcedUnlock PTA's full lab evidence
The aggregate trust teaser above is free. Pro unlocks all 68 certificates and every batch's purity, the batch-by-batch purity distribution, the per-compound breakdown, plus live pricing, stock & the full review thread.
Instant access · cancel anytime · no pay-to-rank, ever
Frequently asked
purity & lab evidenceIs PTA legit?
TitrateLab tracks 68 third-party lab certificates of analysis for PTA, averaging 99.7% tested purity across 58 assayed batches, with 95% of those batches in spec on both purity (≥90%) and labeled dose (filled to within 10% of the labeled amount); 3 assayed batches were significantly underdosed (worst -39% vs the labeled amount) (tests dated 2025-10-30 to 2026-08-08). 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 PTA's average tested purity?
Across the 58 assayed batches TitrateLab tracks for PTA, the mean third-party-tested purity is 99.7%. 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 PTA?
TitrateLab tracks 68 published third-party certificates of analysis for PTA spanning 22 distinct compounds. Each certificate links to its own public page with the purity, test method, issuing lab, and test date.
What share of PTA's tested batches are in spec on purity and dose?
95% of the 58 assayed batches TitrateLab tracks for PTA (55 of 58) were in spec on BOTH tested purity (at or above 90%) and labeled dose (filled to within 10% of the labeled amount). 3 assayed batches were significantly underdosed against the label (worst -39%), 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 →
