Medi Peptide reviews
Medi Peptide reviews: 8 independent lab tests across 2 products, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is Medi Peptide legit? Lab record: Limited
How we rate- 8 independent tests
- 4 of 7 lots filled to label
- Median purity 99.8%
- Both products graded C or better
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Vendor website
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8 independent COAs · not paid-to-rank · 3 of 7 lots under label
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Medi Peptide 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 Medi Peptide's site.
- TirzepatideAGREAT
- Tests
- 3
- Passed
- 100.0%
- RetatrutideBGOOD
- Tests
- 5
- Passed
- 80.0%
What the testing shows
Across 7 measured samples from Medi Peptide, 3 came in more than 5% under the quantity on the label (43%). Another 1 measured more than 5% over. Purity across 8 readings ran from 99.6% to 99.99%, median 99.8%. Samples span May 2026 to Sep 2026.
- Under label
- 3/7
- Median purity
- 99.8%
- Latest sample
- Sep 2026
more than 5% short
99.6%–99.99% range
first tested May 2026
Our read on Medi Peptide
7 of Medi Peptide's 8 graded samples passed (88%), and 100% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was amount in the vial more than 35% off the label (1 time).
Against the 302 shops with at least five graded tests, Medi Peptide's pass rate is at or above 85% of them, and it has more tests on record than 22% of them.
When and how Medi Peptide was tested
Samples per month. The darker part of each bar failed.
- Labs used
- BTLabs (5), Krause Analytical (2), PharmLabs (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 7 distinct batch numbers
Why Medi Peptide's failed samples failed
The only failed test, with the lab's reason.
Retatrutide · May 6, 2026
amount in the vial more than 35% off the label
Lab testing results
Independent results across 2 products.
Individual lab tests
Date
9/24/2026
Purity
99.8%
Quantity
10 mg → 10.5 mg
Lab
BTLabs
Vial
No label / Silver crimp / Gray cap
Date
9/20/2026
Purity
99.99%
Quantity
20 mg → 13.95 mg
Lab
PharmLabs
Vial
No label / Silver crimp / Blue cap
Date
8/18/2026
Purity
99.8%
Quantity
20 mg → 20.2 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Blue cap
Date
7/30/2026
Purity
99.7%
Quantity
10 mg → 10.3 mg
Lab
BTLabs
Vial
No label / Silver crimp / Black cap
Date
7/30/2026
Purity
99.6%
Quantity
10 mg → 8.6 mg
Lab
BTLabs
Vial
No label / Silver crimp / Black cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo label / Silver crimp / Gray cap | 9/24/2026 | 10.0 | 99.8% | 10 mg → 10.5 mg | BTLabs | View |
| TirzepatideNo label / Silver crimp / Blue cap | 9/20/2026 | 10.0 | 99.99% | 20 mg → 13.95 mg | PharmLabs | View |
| RetatrutideSilver label / Silver crimp / Blue cap | 8/18/2026 | 10.0 | 99.8% | 20 mg → 20.2 mg | BTLabs | View |
| TirzepatideNo label / Silver crimp / Black cap | 7/30/2026 | 10.0 | 99.7% | 10 mg → 10.3 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / Black cap | 7/30/2026 | 10.0 | 99.6% | 10 mg → 8.6 mg | BTLabs | View |
Which Medi Peptide products tested best
Tirzepatide and Retatrutide have the strongest record, graded A or B.
Buying from Medi Peptide
If you order from Medi Peptide, start with the graded products in the table: each one links straight to the shop.
We don't track Medi Peptide's prices yet. Shipping, payment and refund terms are on their site.
The official store is medipeptide.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 Medi Peptide
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Medi Peptide: common questions
Is Medi Peptide legit?
We rate lab records, not businesses. Limited lab record: 8 independent tests, 4 of 7 lots filled to label, median purity 99.8%, both products graded C or better. Each result links to its original certificate in the table above.
What do Medi Peptide reviews say?
We don't hold scored customer reviews for Medi Peptide yet. The independent lab results on this page are the evidence we have.
Which Medi Peptide peptides tested best?
We have graded 2 Medi Peptide products. Tirzepatide and Retatrutide graded A or B.
Is there a Medi Peptide coupon code?
We don't have a verified Medi Peptide coupon code. A discount changes the price, not what is in the vial.
Ordering from Medi Peptide?
Limited lab record: 8 independent tests, 4 of 7 lots filled to label, median purity 99.8%, both products graded C or better.