The Research Protocol reviews
The Research Protocol reviews: 4 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is The Research Protocol legit? Lab record: Limited
How we rate- 4 independent tests
- 0 of 2 lots filled to label
- Median purity 99.75%
- 1 of 1 product graded D or E
Some of The Research Protocol's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
The Research Protocol 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 The Research Protocol 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
The Research Protocol: grade EThe Research Protocol 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 The Research Protocol's site.
- RetatrutideEBAD
- Tests
- 4
- Passed
- 50.0%
What the testing shows
Across 2 measured samples from The Research Protocol, 2 came in more than 5% under the quantity on the label (100%). Purity across 2 readings ran from 99.7% to 99.8%, median 99.75%. Samples span Jun 2026 to Jun 2026.
- Under label
- 2/2
- Median purity
- 99.75%
- Latest sample
- Jun 2026
more than 5% short
99.7%–99.8% range
first tested Jun 2026
Our read on The Research Protocol
2 of The Research Protocol's 4 graded samples passed (50%), and 100% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was the lab could not confirm it was the labelled peptide (2 times).
Why The Research Protocol's failed samples failed
The 2 most recent failed tests, with the lab's reason.
Retatrutide · Jun 17, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Jun 12, 2026
the lab could not confirm it was the labelled peptide
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
6/17/2026
Purity
99.8%
Quantity
20 mg → 18 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Violet cap
Date
6/17/2026
Purity
99.7%
Quantity
15 mg → 14 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Black cap
Date
6/17/2026
Purity
—
Quantity
—
Lab
BTLabs
Vial
Silver label / Silver crimp / White cap
Date
6/12/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
Silver label / Silver crimp / Black cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideSilver label / Silver crimp / Violet cap | 6/17/2026 | 10.0 | 99.8% | 20 mg → 18 mg | BTLabs | View |
| RetatrutideSilver label / Silver crimp / Black cap | 6/17/2026 | 10.0 | 99.7% | 15 mg → 14 mg | BTLabs | View |
| RetatrutideSilver label / Silver crimp / White cap | 6/17/2026 | — | — | BTLabs | View | |
| RetatrutideSilver label / Silver crimp / Black cap | 6/12/2026 | — | — | Krause Analytical | View |
Which The Research Protocol products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from The Research Protocol
We don't track The Research Protocol's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.instagram.com/theresearchprotocol. 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 The Research Protocol
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
The Research Protocol: common questions
Is The Research Protocol legit?
We rate lab records, not businesses. Limited lab record: 4 independent tests, 0 of 2 lots filled to label, median purity 99.75%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do The Research Protocol reviews say?
We don't hold scored customer reviews for The Research Protocol yet. The independent lab results on this page are the evidence we have.
Which The Research Protocol peptides tested best?
We have graded 1 The Research Protocol product. Retatrutide graded D or E.
Is there a The Research Protocol coupon code?
We don't have a verified The Research Protocol coupon code. A discount changes the price, not what is in the vial.
Ordering from The Research Protocol?
Limited lab record: 4 independent tests, 0 of 2 lots filled to label, median purity 99.75%, 1 of 1 product graded D or E.