Markus Lanz reviews
Markus Lanz reviews: 3 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is Markus Lanz legit? Lab record: Limited
How we rate- 3 independent tests
- 2 of 3 lots filled to label
- Median purity 99.13%
- 1 of 1 product graded D or E
Some of Markus Lanz's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
Markus Lanz graded E. Paradigm Peptide's Retatrutide graded A across 8 tests, $10.00 / mg.
Buy from Paradigm PeptideAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Markus Lanz graded D or E, these shops' samples of the same peptide graded A or B. Ordered by grade, then price per mg. Partner status never changes the order.
Retatrutide
Markus Lanz: grade EMarkus Lanz products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Markus Lanz's site.
- RetatrutideEBAD
- Tests
- 3
- Passed
- 33.3%
What the testing shows
Across 3 measured samples from Markus Lanz, 1 came in more than 5% under the quantity on the label (33%). Purity across 3 readings ran from 98.57% to 99.94%, median 99.13%. Samples span Sep 2025 to Oct 2025.
- Under label
- 1/3
- Median purity
- 99.13%
- Latest sample
- Oct 2025
- Ships from
- China
more than 5% short
98.57%–99.94% range
first tested Sep 2025
per vendor listing
Our read on Markus Lanz
1 of Markus Lanz's 3 graded samples passed (33%), and 100% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was purity under 99.5% (2 times).
When and how Markus Lanz was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (3)
- Who sent the samples
- buyers 100%
- Batches covered
- No batch numbers on the certificates
Why Markus Lanz's failed samples failed
The 2 most recent failed tests, with the lab's reason.
Retatrutide · Oct 23, 2025
purity under 99.5%
Retatrutide · Oct 23, 2025
purity under 99.5%
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
10/23/2025
Purity
99.13%
Quantity
30 mg → 30.2 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
10/23/2025
Purity
98.57%
Quantity
30 mg → 29.6 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Violet Cap
Date
9/18/2025
Purity
99.94%
Quantity
10 mg → 9.39 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Yellow Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo Label / Silver Crimp / Violet Cap | 10/23/2025 | 9.9 | 99.13% | 30 mg → 30.2 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Violet Cap | 10/23/2025 | 9.9 | 98.57% | 30 mg → 29.6 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Yellow Cap | 9/18/2025 | 10.0 | 99.94% | 10 mg → 9.39 mg | Krause Analytical | View |
Which Markus Lanz products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from Markus Lanz
We don't track Markus Lanz's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.facebook.com/markus.lanz.73157203. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track Markus Lanz
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Markus Lanz: common questions
Is Markus Lanz legit?
We rate lab records, not businesses. Limited lab record: 3 independent tests, 2 of 3 lots filled to label, median purity 99.13%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do Markus Lanz reviews say?
We don't hold scored customer reviews for Markus Lanz yet. The independent lab results on this page are the evidence we have.
Which Markus Lanz peptides tested best?
We have graded 1 Markus Lanz product. Retatrutide graded D or E.
Is there a Markus Lanz coupon code?
We don't have a verified Markus Lanz coupon code. A discount changes the price, not what is in the vial.
Where does Markus Lanz ship from?
Public listings place Markus Lanz's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Markus Lanz?
Limited lab record: 3 independent tests, 2 of 3 lots filled to label, median purity 99.13%, 1 of 1 product graded D or E.
About Markus Lanz
Wap:852-5465-0563