HK Peptides reviews
HK Peptides reviews: 466 independent lab tests across 13 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is HK Peptides legit? Lab record: Mixed
How we rate- 466 independent tests
- 373 of 437 lots filled to label
- Median purity 99.87%
- 7 of 13 products graded D or E
Some of HK Peptides's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Sermorelin
HK Peptides graded E. Peptide Partners's Sermorelin graded A across 2 tests.
Buy from Peptide PartnersAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where HK Peptides 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.
HK Peptides 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 HK Peptides' site.
- RetatrutideBGOOD
- Tests
- 144
- Passed
- 86.0%
- TirzepatideBGOOD
- Tests
- 134
- Passed
- 84.1%
- GHK-CuBGOOD
- Tests
- 52
- Passed
- 86.5%
- BPC-157BGOOD
- Tests
- 22
- Passed
- 86.4%
- PT-141BGOOD
- Tests
- 7
- Passed
- 85.7%
- Melanotan IICOKAY
- Tests
- 12
- Passed
- 72.7%
- CagrilintideDPOOR
- Tests
- 11
- Passed
- 63.6%
- SemaglutideDPOOR
- Tests
- 10
- Passed
- 60.0%
- TesamorelinEBAD
- Tests
- 34
- Passed
- 47.1%
- IpamorelinEBAD
- Tests
- 14
- Passed
- 50.0%
- TB-500EBAD
- Tests
- 10
- Passed
- 50.0%
- CJC-1295EBAD
- Tests
- 10
- Passed
- 30.0%
- SermorelinEBAD
- Tests
- 6
- Passed
- 50.0%
What the testing shows
Across 437 measured samples from HK Peptides, 64 came in more than 5% under the quantity on the label (15%). Another 180 measured more than 5% over. Purity across 443 readings ran from 75.9% to 100%, median 99.87%. Samples span Jun 2025 to Oct 2026.
- Under label
- 64/437
- Median purity
- 99.87%
- Latest sample
- Oct 2026
- Ships from
- China
more than 5% short
75.9%–100% range
first tested Jun 2025
per vendor listing
Our read on HK Peptides
359 of HK Peptides' 462 graded samples passed (78%), and 96% of all samples were sent in by buyers rather than by the shop.
The pass rate has held steady: 76% over the latest six months against 78% before.
When a sample failed, the most common reason was purity under 99.5% (65 times).
19 samples failed identity, meaning the lab could not confirm the vial held the labelled peptide.
Against the 302 shops with at least five graded tests, HK Peptides' pass rate is at or above 64% of them, and it has more tests on record than 100% of them.
When and how HK Peptides was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (329), BTLabs (111), Chromate (11), Freedom Diagnostics (8)
- Who sent the samples
- buyers 96%, testing programme 4%
- Batches covered
- 129 distinct batch numbers; 23 checked for endotoxins
Why HK Peptides' failed samples failed
The 6 most recent failed tests, with the lab's reason.
Ipamorelin · Sep 30, 2026
purity under 99.5%
Tirzepatide · Sep 24, 2026
the lab could not confirm it was the labelled peptide
Tirzepatide · Sep 24, 2026
purity under 99.5%
TB-500 · Sep 10, 2026
purity under 99.5%
Retatrutide · Sep 9, 2026
the lab could not confirm it was the labelled peptide
Sermorelin · Sep 4, 2026
the lab could not confirm it was the labelled peptide
Lab testing results
Independent results across 13 products.
Individual lab tests
Date
10/12/2026
Purity
99.9%
Quantity
100 mg → 111 mg
Lab
Krause Analytical
Vial
No Label / Silver crimp / Clear cap
Date
10/6/2026
Purity
99.7%
Quantity
50 mg → 55.3 mg
Lab
BTLabs
Vial
White label / Copper crimp / Clear cap
Date
10/6/2026
Purity
99.9%
Quantity
30 mg → 37.1 mg
Lab
BTLabs
Vial
White label / Copper crimp / Clear cap
Date
10/3/2026
Purity
99.9%
Quantity
50 mg → 56.8 mg
Lab
BTLabs
Vial
No label / Silver crimp / Blue cap
Date
9/30/2026
Purity
99.3%
Quantity
10 mg → 10.1 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Black cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| GHK-CuNo Label / Silver crimp / Clear cap | 10/12/2026 | 10.0 | 99.9% | 100 mg → 111 mg | Krause Analytical | View |
| GHK-CuWhite label / Copper crimp / Clear cap | 10/6/2026 | 10.0 | 99.7% | 50 mg → 55.3 mg | BTLabs | View |
| TirzepatideWhite label / Copper crimp / Clear cap | 10/6/2026 | 10.0 | 99.9% | 30 mg → 37.1 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / Blue cap | 10/3/2026 | 10.0 | 99.9% | 50 mg → 56.8 mg | BTLabs | View |
| IpamorelinNo label / Silver crimp / Black cap | 9/30/2026 | 9.9 | 99.3% | 10 mg → 10.1 mg | Krause Analytical | View |
Which HK Peptides products tested best
GHK-Cu, BPC-157, Retatrutide, PT-141 and Tirzepatide have the strongest record, graded A or B.
Melanotan II graded C.
Cagrilintide, Semaglutide, Sermorelin, Ipamorelin, TB-500, Tesamorelin and CJC-1295 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from HK Peptides
If you order from HK Peptides, 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 HK Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is www.hkpeptide.com/pro_56210831.html###. 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 HK Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
HK Peptides: common questions
Is HK Peptides legit?
We rate lab records, not businesses. Mixed lab record: 466 independent tests, 373 of 437 lots filled to label, median purity 99.87%, 7 of 13 products graded D or E. Each result links to its original certificate in the table above.
What do HK Peptides reviews say?
We don't hold scored customer reviews for HK Peptides yet. The independent lab results on this page are the evidence we have.
Which HK Peptides peptides tested best?
We have graded 13 HK Peptides products. GHK-Cu, BPC-157, Retatrutide, PT-141 and Tirzepatide graded A or B. Cagrilintide, Semaglutide, Sermorelin, Ipamorelin, TB-500, Tesamorelin and CJC-1295 graded D or E.
Is there a HK Peptides coupon code?
We don't have a verified HK Peptides coupon code. A discount changes the price, not what is in the vial.
Where does HK Peptides ship from?
Public listings place HK Peptides's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from HK Peptides?
Mixed lab record: 466 independent tests, 373 of 437 lots filled to label, median purity 99.87%, 7 of 13 products graded D or E.
Contact
- Hong Kong, China.
- www.hkpeptide.com/pro_56210831.html###