Hengan Peptide Factory reviews
Hengan Peptide Factory reviews: 5 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is Hengan Peptide Factory legit? Lab record: Limited
How we rate- 5 independent tests
- 2 of 3 lots filled to label
- Median purity 99.85%
- 1 of 1 product graded D or E
Some of Hengan Peptide Factory's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
Hengan Peptide Factory 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 Hengan Peptide Factory 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
Hengan Peptide Factory: grade EHengan Peptide Factory 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 Hengan Peptide Factory's site.
- RetatrutideEBAD
- Tests
- 5
- Passed
- 40.0%
What the testing shows
Across 3 measured samples from Hengan Peptide Factory, 1 came in more than 5% under the quantity on the label (33%). Another 1 measured more than 5% over. Purity across 4 readings ran from 98.7% to 100%, median 99.85%. Samples span Apr 2026 to Oct 2026.
- Under label
- 1/3
- Median purity
- 99.85%
- Latest sample
- Oct 2026
more than 5% short
98.7%–100% range
first tested Apr 2026
Our read on Hengan Peptide Factory
2 of Hengan Peptide Factory's 5 graded samples passed (40%), 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 (2 times).
1 sample failed identity, meaning the lab could not confirm the vial held the labelled peptide.
Against the 302 shops with at least five graded tests, Hengan Peptide Factory's pass rate is at or above 8% of them, and it has more tests on record than 0% of them.
When and how Hengan Peptide Factory was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (3), Ichor Life Sciences (1), BTLabs (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 3 distinct batch numbers; 1 checked for endotoxins
Why Hengan Peptide Factory's failed samples failed
The 3 most recent failed tests, with the lab's reason.
Retatrutide · Oct 6, 2026
amount in the vial more than 35% off the label
Retatrutide · Jul 14, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Apr 26, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
10/6/2026
Purity
100%
Quantity
30 mg → 42.8034 mg
Lab
Ichor Life Sciences
Vial
Silver crimp / Black cap
Date
7/20/2026
Purity
99.8%
Quantity
30 mg → 29.9 mg
Lab
BTLabs
Vial
White label / Silver crimp / Clear Blue cap
Date
7/14/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
No label / Silver crimp / Red cap
Date
6/16/2026
Purity
99.9%
Quantity
20 mg → 17.2 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Blue cap
Date
4/26/2026
Purity
98.7%
Quantity
10 mg → 1.93 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / White Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideSilver crimp / Black cap | 10/6/2026 | 10.0 | 100% | 30 mg → 42.8034 mg | Ichor Life Sciences | View |
| RetatrutideWhite label / Silver crimp / Clear Blue cap | 7/20/2026 | 10.0 | 99.8% | 30 mg → 29.9 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / Red cap | 7/14/2026 | — | — | Krause Analytical | View | |
| RetatrutideWhite label / Silver crimp / Blue cap | 6/16/2026 | 10.0 | 99.9% | 20 mg → 17.2 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / White Cap | 4/26/2026 | 9.9 | 98.7% | 10 mg → 1.93 mg | Krause Analytical | View |
Which Hengan Peptide Factory products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from Hengan Peptide Factory
We don't track Hengan Peptide Factory's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.henganpeptidefactory.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 Hengan Peptide Factory
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Hengan Peptide Factory: common questions
Is Hengan Peptide Factory legit?
We rate lab records, not businesses. Limited lab record: 5 independent tests, 2 of 3 lots filled to label, median purity 99.85%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do Hengan Peptide Factory reviews say?
We don't hold scored customer reviews for Hengan Peptide Factory yet. The independent lab results on this page are the evidence we have.
Which Hengan Peptide Factory peptides tested best?
We have graded 1 Hengan Peptide Factory product. Retatrutide graded D or E.
Is there a Hengan Peptide Factory coupon code?
We don't have a verified Hengan Peptide Factory coupon code. A discount changes the price, not what is in the vial.
Ordering from Hengan Peptide Factory?
Limited lab record: 5 independent tests, 2 of 3 lots filled to label, median purity 99.85%, 1 of 1 product graded D or E.