TitrateLab/Vendors/QLP
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QLP: Independent Lab Review (349 COAs Tested)
Lab-verified evidenceQing Li Peptide
An independent, evidence-first review of QLP (Qing Li Peptide) — wondering if QLP is legit? Every number below is sourced from 349 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 346 assayed batches
⚠ 43 batches underdosed — worst -100% vs labeled dose
Purity distribution
346 batches · ProCOAs tracked
349
third-party certs
In-spec rate
88%
43 underdosed · worst -100%
Compounds
21
distinct peptides
Coverage
2025-05 → 2026-07
first → latest test
The batch-by-batch distribution is a Pro feature
See every one of QLP's 346 assayed batches plotted by purity around the 97.3% average — the real per-batch readings behind the headline stats.
Go Pro — $12/mo or $33 lifetimeDose distribution
348 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
64%
within ±10% of label
Median
+2%
vs labeled dose
Worst underfill
-100%
43 batches <−10%
Worst overfill
+97%
81 batches >+10%
The batch-by-batch dose distribution is a Pro feature
See every one of QLP's 348 dose-tested batches plotted by deviation from labeled dose — the real per-batch underfill/overfill behind the headline stats.
Go Pro — $12/mo or $33 lifetimeCompounds tested
21 distinct · 349 certsGrouped by class, most-tested first. Tap a linked compound for the full research hub.
Certificates by compound
349 third-party COAs · 21 compoundsEvery third-party certificate of analysis TitrateLab tracks for QLP, 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
GHK-Cu
BPC-157
Tesamorelin
TB-500
CJC-1295
Ipamorelin
Melanotan II
PT-141
Show 3 more compounds with 3+ certificates
Cagrilintide
Compound explorer
21 compounds · 349 certificatesEvery compound QLP has certificates for. Switch the measure — each one reports how many certificates it is actually based on, and compounds never tested for that measure drop out rather than showing as zero.
21 compounds, 120 certificates on the busiest
Retatrutide 120
GHK-Cu 35
Tesamorelin 21
TB-500 19
CJC-1295 18
Ipamorelin 17
Melanotan II 7
PT-141 7
Cagrilintide 5
Sermorelin 5
Survodutide 4
Epithalon 1
Mazdutide 1
MOTS-C 1
SS-31 1
Community reviews
Pro-member sourcedUnlock QLP'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 349 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 QLP legit?
TitrateLab tracks 349 third-party lab certificates of analysis for QLP, averaging 97.3% tested purity across 346 assayed batches, with 88% of those batches in spec on both purity (≥90%) and labeled dose (filled to within 10% of the labeled amount); 43 assayed batches were significantly underdosed (worst -100% vs the labeled amount) (tests dated 2025-05-15 to 2026-07-01). 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 QLP's average tested purity?
Across the 346 assayed batches TitrateLab tracks for QLP, the mean third-party-tested purity is 97.3%. 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 QLP?
TitrateLab tracks 349 published third-party certificates of analysis for QLP 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 QLP's tested batches are in spec on purity and dose?
88% of the 346 assayed batches TitrateLab tracks for QLP (303 of 346) were in spec on BOTH tested purity (at or above 90%) and labeled dose (filled to within 10% of the labeled amount). 43 assayed batches were significantly underdosed against the label (worst -100%), 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 →