Independent lab evidence

PTB

Peptronix Bio Ptb

PTB’s lab evidence dates to April 2025 and covers 38 test records across 8 recorded compound names, alongside 482 community reviews. Median purity is 99.7% across 37 positive purity tests.

▸ What you can check next

These results describe the 38 certificates on file for PTB — the batches that were tested, not the vial you are being offered.

Check a batch from PTB Search the public COA corpus by batch or lot number and see whether that exact batch was ever tested. Watch PTB A free account keeps a vendor watchlist. The daily digest of mentions and announcements is part of Pro.
38Test records8 recorded name groups

Reports by test date

2025-04-282026-09-08
99.7%Median purity37 positive purity tests
482Community reviewsRead community experiences →

38 published records · 0 excluded by the current index · Names on reports; vendor role unverified. A test record is not necessarily a unique certificate.

Key facts

All time unless dated
0

Endotoxin failures

0 classified tests

0

Expected compound not detected

37 reported purity outcomes

None recorded
0

Underfilled >15%

3 fill tests · Last 6 months

1

Overfilled >15%

3 fill tests · Last 6 months

0

Reported zero amount

37 numeric amount results

None recorded

Test results

How the fills compare

17 fill tests · All time

Measured against the printed amount. Finnrick quantities are excluded.

Beyond the purity average

37 positive tests

Mean 99.5% · Median 99.7%. The 90% grouping is not a safety threshold.

Test coverage & missing results

1 records have no usable purity outcome. 21 do not have a comparable fill test. 38 lack a classified endotoxin result. A classified pass does not mean no endotoxin was detected.

Community reviews

All 482 reviews →

The 10 most recent approved reviews. Buyer experiences—not lab results or verified purchases.

250Positive
97Neutral
135Negative
0Unclassified
ReviewerMark Hawke VendorPTBPeptronix Bio Ptb
Tone
Telegram #fa7cb6de
ReviewerDee Dav VendorPTBPeptronix Bio Ptb
Tone
Telegram #f12da0c6
Reviewerdanny_doesnt VendorPTBPeptronix Bio Ptb
Tone
Telegram #91fe6ea0
ReviewerStormy W VendorPTBPeptronix Bio Ptb
Tone
Telegram #8c2b6ea6
ReviewerLilmislilmis VendorPTBPeptronix Bio Ptb
Tone
Telegram #99d5520e
ReviewerBodhiSavage VendorPTBPeptronix Bio Ptb
Tone
Telegram #5a9e2b58
Reviewercjcanfora VendorPTBPeptronix Bio Ptb
Tone
Telegram #a14a414e
ReviewerDaddyGoat23 VendorPTBPeptronix Bio Ptb
Tone
Telegram #7db2812f
Revieweralsggard VendorPTBPeptronix Bio Ptb
Tone
Telegram #830458da
Read more reviews →
Public review excerpts

Prices & value

Market price index →

Recorded offers—not a live stock guarantee. Package quantity, delivery market and price basis stay attached.

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Evidence over time

Dated records—not a performance trend

2025-04-28 — 2026-09-08

Research involving PTB

All research →

Published investigations, with the sources and context behind the findings.

No vendor-specific investigations are listed yet. The lab evidence and community reviews are available in their tabs.

Questions about PTB

Answers based on the published evidence—not a vendor endorsement.

Is PTB legit?

TitrateLab does not rank or recommend vendors; it reports what independent labs measured. PTB shows high measured purity (99.5% mean across 37 positive purity measurements). Dose accuracy is mixed and no recent result was under label: in the last 12 months 5 of 10 dose results were on target, 0 under label and 5 over; all time 10 of 17 on target, 0 under and 7 over. These results describe tested batches, not every product or shipment.

What is PTB's average purity?

99.5% mean measured purity across 37 positive third-party lab results; 37 were at or above 90% and 0 were below.

How many PTB lab certificates has TitrateLab tracked?

38 third-party certificates from 2025-04-28 to 2026-09-08, covering 8 compounds.

How accurate are PTB's doses?

Dose accuracy is mixed and no recent result was under label: in the last 12 months 5 of 10 dose results were on target, 0 under label and 5 over; all time 10 of 17 on target, 0 under and 7 over. A dose result compares the measured amount with the amount printed on the label: under is more than 10% below, over is more than 10% above, on target is everything in between. Finnrick results are excluded because that lab measures against the vendor's batch claim. Missing values are never counted as passes.

Has PTB failed an endotoxin test?

No classifiable endotoxin result is on file for any of the 38 counted records.

Sources, definitions & limits

38 published records are attributed to this vendor. The current certificate index excludes 0 repeated records using file hashes and supported lab verification links. Missing identity keys can leave repeated certificates. Recorded name groups can include variants, mixtures and unclassified names.

Evidence dates describe the tested samples, not when the vendor was founded, current stock, or a performance trend. Purity uses positive measurements only. Exact-zero purity is a not-detected identity outcome, not proof of an empty vial. A zero measured amount requires an explicit numeric amount result; missing amounts are not zero.

Underfills and overfills here exceed 15% in either direction against the printed amount. Vendor batch claims are not used; Finnrick quantity comparisons are excluded. Recent outcomes cover 2026-03-17 through 2026-09-17, inclusive. The older published ±10% partition may appear in the existing FAQ and is a different, explicitly labelled threshold. Missing tests are not passing results.

Endotoxin failures, borderline outcomes and passes use the recorded lab verdict. A pass is not proof of no endotoxin. Only 0 records have a classifiable result. Community sentiment describes reviews, not laboratory measurements or independently verified purchases. Results are not certification, medical advice or endorsement.

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Supporting reports

COA report
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For order cards marked TitrateLab protected: Test what we sold you, and if it comes back under 95% purity and more than 13% underdosed, we reimburse 50% of your lab report and reship the product free. Both conditions have to be met.

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