Group Buy Kits GBK reviews
Group Buy Kits GBK reviews: 8 independent lab tests across 3 products, with a limited lab record.
Written by Jian Wang, Founder & CEO
Is Group Buy Kits GBK legit? Lab record: Limited
How we rate- 8 independent tests
- 7 of 7 lots filled to label
- Median purity 99.8%
- All 3 products graded C or better
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Vendor website
Visit Group Buy Kits GBK
8 independent COAs · not paid-to-rank · 0 of 7 lots under label
Visit Group Buy Kits GBKOpens the vendor site. No partner discount on this shop.
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Group Buy Kits GBK 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 Group Buy Kits GBK's site.
- RetatrutideAGREAT
- Tests
- 2
- Passed
- 100.0%
- GHK-CuAGREAT
- Tests
- 2
- Passed
- 100.0%
- TirzepatideCOKAY
- Tests
- 4
- Passed
- 75.0%
What the testing shows
Across 7 measured samples from Group Buy Kits GBK, 0 came in more than 5% under the quantity on the label (0%). Another 4 measured more than 5% over. Purity across 7 readings ran from 99.7% to 99.99%, median 99.8%. Samples span May 2026 to Oct 2026.
- Under label
- 0/7
- Median purity
- 99.8%
- Latest sample
- Oct 2026
more than 5% short
99.7%–99.99% range
first tested May 2026
Lab testing results
Independent results across 3 products.
Individual lab tests
Date
10/14/2026
Purity
99.99%
Quantity
10 mg → 9.5 mg
Lab
PharmLabs
Vial
Silver crimp / Black cap
Date
9/17/2026
Purity
99.9%
Quantity
30 mg → 32.7 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Black cap
Date
8/28/2026
Purity
99.7%
Quantity
50 mg → 54.5 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Clear cap
Date
8/28/2026
Purity
99.8%
Quantity
10 mg → 10.9 mg
Lab
BTLabs
Vial
Silver label / Silver crimp / Yellow cap
Date
6/16/2026
Purity
99.8%
Quantity
10 mg → 10.2 mg
Lab
BTLabs
Vial
White label / Silver crimp / Orange cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideSilver crimp / Black cap | 10/14/2026 | 10.0 | 99.99% | 10 mg → 9.5 mg | PharmLabs | View |
| TirzepatideNo label / Silver crimp / Black cap | 9/17/2026 | 10.0 | 99.9% | 30 mg → 32.7 mg | Krause Analytical | View |
| GHK-CuSilver label / Silver crimp / Clear cap | 8/28/2026 | 10.0 | 99.7% | 50 mg → 54.5 mg | BTLabs | View |
| RetatrutideSilver label / Silver crimp / Yellow cap | 8/28/2026 | 10.0 | 99.8% | 10 mg → 10.9 mg | BTLabs | View |
| TirzepatideWhite label / Silver crimp / Orange cap | 6/16/2026 | 10.0 | 99.8% | 10 mg → 10.2 mg | BTLabs | View |
Which Group Buy Kits GBK products tested best
Retatrutide and GHK-Cu have the strongest record, graded A or B.
Tirzepatide graded C.
Buying from Group Buy Kits GBK
If you order from Group Buy Kits GBK, start with the graded products in the table: each one links straight to the shop.
We don't track Group Buy Kits GBK's prices yet. Shipping, payment and refund terms are on their site.
The official store is groupbuykits.com/register. 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 Group Buy Kits GBK
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Group Buy Kits GBK: common questions
Is Group Buy Kits GBK legit?
We rate lab records, not businesses. Limited lab record: 8 independent tests, 7 of 7 lots filled to label, median purity 99.8%, all 3 products graded C or better. Each result links to its original certificate in the table above.
What do Group Buy Kits GBK reviews say?
We don't hold scored customer reviews for Group Buy Kits GBK yet. The independent lab results on this page are the evidence we have.
Which Group Buy Kits GBK peptides tested best?
We have graded 3 Group Buy Kits GBK products. Retatrutide and GHK-Cu graded A or B.
Is there a Group Buy Kits GBK coupon code?
We don't have a verified Group Buy Kits GBK coupon code. A discount changes the price, not what is in the vial.
Ordering from Group Buy Kits GBK?
Limited lab record: 8 independent tests, 7 of 7 lots filled to label, median purity 99.8%, all 3 products graded C or better.
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Group Buy Kits GBK customer reviews
No reviews have been submitted yet for Group Buy Kits GBK.