MT Meipept reviews
MT Meipept reviews: 22 independent lab tests across 4 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is MT Meipept legit? Lab record: Mixed
How we rate- 22 independent tests
- 14 of 19 lots filled to label
- Median purity 99.85%
- 1 of 4 products graded D or E
Some of MT Meipept's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Tirzepatide
MT Meipept graded D. Paradigm Peptide's Tirzepatide graded A across 10 tests, $4.97 / 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 MT Meipept 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.
MT Meipept 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 MT Meipept's site.
- GHK-CuAGREAT
- Tests
- 4
- Passed
- 100.0%
- CagrilintideAGREAT
- Tests
- 3
- Passed
- 100.0%
- RetatrutideBGOOD
- Tests
- 7
- Passed
- 85.7%
- TirzepatideDPOOR
- Tests
- 8
- Passed
- 62.5%
What the testing shows
Across 19 measured samples from MT Meipept, 5 came in more than 5% under the quantity on the label (26%). Another 10 measured more than 5% over. Purity across 22 readings ran from 95.7% to 99.9%, median 99.85%. Samples span Jan 2026 to Sep 2026.
- Under label
- 5/19
- Median purity
- 99.85%
- Latest sample
- Sep 2026
more than 5% short
95.7%–99.9% range
first tested Jan 2026
Our read on MT Meipept
18 of MT Meipept's 22 graded samples passed (82%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 78% passed over the latest six months, down from 85% before.
When a sample failed, the most common reason was amount in the vial more than 35% off the label (3 times).
Against the 302 shops with at least five graded tests, MT Meipept's pass rate is at or above 73% of them, and it has more tests on record than 55% of them.
When and how MT Meipept was tested
Samples per month. The darker part of each bar failed.
- Labs used
- BTLabs (11), Krause Analytical (10), Harrens Lab (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 13 distinct batch numbers
Why MT Meipept's failed samples failed
The 4 most recent failed tests, with the lab's reason.
Tirzepatide · Sep 24, 2026
purity under 99.5%
Tirzepatide · May 27, 2026
amount in the vial more than 35% off the label
Tirzepatide · Feb 20, 2026
amount in the vial more than 35% off the label
Retatrutide · Jan 22, 2026
amount in the vial more than 35% off the label
Lab testing results
Independent results across 4 products.
Individual lab tests
Date
9/24/2026
Purity
95.7%
Quantity
40 mg → 38.28 mg
Lab
Harrens Lab
Vial
No label / Copper crimp / Clear cap
Date
8/28/2026
Purity
99.9%
Quantity
30 mg → 34.3 mg
Lab
BTLabs
Vial
No label / Silver crimp / Clear Pink cap
Date
7/30/2026
Purity
99.8%
Quantity
5 mg → 5.1 mg
Lab
BTLabs
Vial
No label / Silver crimp / Blue cap
Date
7/1/2026
Purity
99.9%
Quantity
20 mg → 23.1 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Purple cap
Date
6/24/2026
Purity
99.9%
Quantity
15 mg → 13.7 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Clear Pink cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo label / Copper crimp / Clear cap | 9/24/2026 | 9.6 | 95.7% | 40 mg → 38.28 mg | Harrens Lab | View |
| TirzepatideNo label / Silver crimp / Clear Pink cap | 8/28/2026 | 10.0 | 99.9% | 30 mg → 34.3 mg | BTLabs | View |
| CagrilintideNo label / Silver crimp / Blue cap | 7/30/2026 | 10.0 | 99.8% | 5 mg → 5.1 mg | BTLabs | View |
| TirzepatideNo label / Silver crimp / Purple cap | 7/1/2026 | 10.0 | 99.9% | 20 mg → 23.1 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Clear Pink cap | 6/24/2026 | 10.0 | 99.9% | 15 mg → 13.7 mg | Krause Analytical | View |
Which MT Meipept products tested best
Cagrilintide, GHK-Cu and Retatrutide have the strongest record, graded A or B.
Tirzepatide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from MT Meipept
If you order from MT Meipept, the A- and B-graded products are the safer picks on this record. For the weaker ones, the better-tested options on this page come from other shops.
We don't track MT Meipept's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.mei-pept.com. 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 MT Meipept
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
MT Meipept: common questions
Is MT Meipept legit?
We rate lab records, not businesses. Mixed lab record: 22 independent tests, 14 of 19 lots filled to label, median purity 99.85%, 1 of 4 products graded D or E. Each result links to its original certificate in the table above.
What do MT Meipept reviews say?
We don't hold scored customer reviews for MT Meipept yet. The independent lab results on this page are the evidence we have.
Which MT Meipept peptides tested best?
We have graded 4 MT Meipept products. Cagrilintide, GHK-Cu and Retatrutide graded A or B. Tirzepatide graded D or E.
Is there a MT Meipept coupon code?
We don't have a verified MT Meipept coupon code. A discount changes the price, not what is in the vial.
Ordering from MT Meipept?
Mixed lab record: 22 independent tests, 14 of 19 lots filled to label, median purity 99.85%, 1 of 4 products graded D or E.