Crush Research reviews
Crush Research reviews: 18 independent lab tests across 4 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Crush Research legit? Lab record: Mixed
How we rate- 18 independent tests
- 10 of 14 lots filled to label
- Median purity 99.8%
- Both products graded C or better
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18 independent COAs · not paid-to-rank · 4 of 14 lots under label
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Peptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Crush Research 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 Crush Research's site.
- RetatrutideAGREAT
- Tests
- 10
- Passed
- 100.0%
- CJC-IPAAGREAT
- Tests
- 2
- Passed
- 100.0%
- Tests
- 4
- Passed
- —
- Wolverine—
- Tests
- 2
- Passed
- —
What the testing shows
Across 14 measured samples from Crush Research, 4 came in more than 5% under the quantity on the label (29%). Another 6 measured more than 5% over. Purity across 18 readings ran from 87.27% to 99.99%, median 99.8%. Samples span Dec 2025 to Oct 2026.
- Under label
- 4/14
- Median purity
- 99.8%
- Latest sample
- Oct 2026
- Ships from
- United States
more than 5% short
87.27%–99.99% range
first tested Dec 2025
per vendor listing
Our read on Crush Research
12 of Crush Research's 18 graded samples passed (67%), and 44% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 57% passed over the latest six months, down from 100% before.
When a sample failed, the most common reason was amount in the vial more than 35% off the label (6 times).
Against the 302 shops with at least five graded tests, Crush Research's pass rate is at or above 36% of them, and it has more tests on record than 45% of them.
When and how Crush Research was tested
Samples per month. The darker part of each bar failed.
- Labs used
- BTLabs (12), Krause Analytical (3), Ichor Life Sciences (2), PharmLabs (1)
- Who sent the samples
- buyers 44%, testing programme 56%
- Batches covered
- 12 distinct batch numbers; 2 checked for endotoxins
Why Crush Research's failed samples failed
The 6 most recent failed tests, with the lab's reason.
BPC-157 · Aug 27, 2026
purity under 99.5%; amount in the vial more than 35% off the label
BPC-157 · Aug 27, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Wolverine · Aug 9, 2026
amount in the vial more than 35% off the label
BPC-157 · Aug 9, 2026
amount in the vial more than 35% off the label
BPC-157 · Aug 9, 2026
amount in the vial more than 35% off the label
Wolverine · Aug 9, 2026
amount in the vial more than 35% off the label
Lab testing results
Independent results across 4 products.
Individual lab tests
Date
10/14/2026
Purity
99.99%
Quantity
15 mg → 15.25 mg
Lab
PharmLabs
Vial
Silver crimp / Black cap
Date
9/17/2026
Purity
99.9%
Quantity
50 mg → 58.7 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Yellow cap
Date
8/27/2026
Purity
87.79%
Quantity
5 mg → 8.75 mg
Lab
Ichor Life Sciences
Vial
White label, Silver crimp, Blue cap
Date
8/27/2026
Purity
87.27%
Quantity
5 mg → 8.72 mg
Lab
Ichor Life Sciences
Vial
White label, Silver crimp, Blue cap
Date
8/9/2026
Purity
99.7%
Quantity
20 mg → 10.4 mg
Lab
BTLabs
Vial
White label, Silver crimp, Violet cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideSilver crimp / Black cap | 10/14/2026 | 10.0 | 99.99% | 15 mg → 15.25 mg | PharmLabs | View |
| RetatrutideWhite label / Silver crimp / Yellow cap | 9/17/2026 | 10.0 | 99.9% | 50 mg → 58.7 mg | Krause Analytical | View |
| BPC-157White label, Silver crimp, Blue cap | 8/27/2026 | 8.8 | 87.79% | 5 mg → 8.75 mg | Ichor Life Sciences | View |
| BPC-157White label, Silver crimp, Blue cap | 8/27/2026 | 8.7 | 87.27% | 5 mg → 8.72 mg | Ichor Life Sciences | View |
| WolverineWhite label, Silver crimp, Violet cap | 8/9/2026 | 10.0 | 99.7% | 20 mg → 10.4 mg | BTLabs | View |
Which Crush Research products tested best
Retatrutide and CJC-IPA have the strongest record, graded A or B.
Buying from Crush Research
If you order from Crush Research, start with the graded products in the table: each one links straight to the shop.
We don't track Crush Research's prices yet. Shipping, payment and refund terms are on their site.
The official store is crushresearch.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 Crush Research
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Crush Research: common questions
Is Crush Research legit?
We rate lab records, not businesses. Mixed lab record: 18 independent tests, 10 of 14 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 Crush Research reviews say?
We don't hold scored customer reviews for Crush Research yet. The independent lab results on this page are the evidence we have.
Which Crush Research peptides tested best?
We have graded 2 Crush Research products. Retatrutide and CJC-IPA graded A or B.
Is there a Crush Research coupon code?
We don't have a verified Crush Research coupon code. A discount changes the price, not what is in the vial.
Where does Crush Research ship from?
Public listings place Crush Research's shipping origin in United States. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Crush Research?
Mixed lab record: 18 independent tests, 10 of 14 lots filled to label, median purity 99.8%, both products graded C or better.