BiochemAPI reviews
BiochemAPI reviews: 4 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is BiochemAPI legit? Lab record: Limited
How we rate- 4 independent tests
- 3 of 4 lots filled to label
- Median purity 99.7%
- 1 of 1 product graded D or E
Some of BiochemAPI's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
BiochemAPI 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 BiochemAPI 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
BiochemAPI: grade EBiochemAPI 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 BiochemAPI's site.
- RetatrutideEBAD
- Tests
- 4
- Passed
- 50.0%
What the testing shows
Across 4 measured samples from BiochemAPI, 1 came in more than 5% under the quantity on the label (25%). Another 2 measured more than 5% over. Purity across 4 readings ran from 98.51% to 99.9%, median 99.7%. Samples span Jan 2026 to Aug 2026.
- Under label
- 1/4
- Median purity
- 99.7%
- Latest sample
- Aug 2026
more than 5% short
98.51%–99.9% range
first tested Jan 2026
Our read on BiochemAPI
2 of BiochemAPI'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 amount in the vial more than 35% off the label (1 time).
When and how BiochemAPI was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (2), BTLabs (2)
- Who sent the samples
- buyers 100%
- Batches covered
- 4 distinct batch numbers; 2 checked for endotoxins
Why BiochemAPI's failed samples failed
The 2 most recent failed tests, with the lab's reason.
Retatrutide · Aug 4, 2026
amount in the vial more than 35% off the label
Retatrutide · Mar 3, 2026
purity under 99.5%
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
8/4/2026
Purity
99.9%
Quantity
140 mg → 208 mg
Lab
Krause Analytical
Vial
No label, Silver crimp, Red cap
Date
3/3/2026
Purity
98.51%
Quantity
20 mg → 20.9 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Yellow Cap
Date
2/4/2026
Purity
99.7%
Quantity
20 mg → 21.5 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Clear Blue Cap
Date
1/26/2026
Purity
99.7%
Quantity
10 mg → 8.8 mg
Lab
BTLabs
Vial
No Label / Silver Crimp / Blue Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo label, Silver crimp, Red cap | 8/4/2026 | 10.0 | 99.9% | 140 mg → 208 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Yellow Cap | 3/3/2026 | 9.9 | 98.51% | 20 mg → 20.9 mg | Krause Analytical | View |
| RetatrutideNo Label / Silver Crimp / Clear Blue Cap | 2/4/2026 | 10.0 | 99.7% | 20 mg → 21.5 mg | BTLabs | View |
| RetatrutideNo Label / Silver Crimp / Blue Cap | 1/26/2026 | 10.0 | 99.7% | 10 mg → 8.8 mg | BTLabs | View |
Which BiochemAPI products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from BiochemAPI
We don't track BiochemAPI's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.biochemapi.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 BiochemAPI
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
BiochemAPI: common questions
Is BiochemAPI legit?
We rate lab records, not businesses. Limited lab record: 4 independent tests, 3 of 4 lots filled to label, median purity 99.7%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do BiochemAPI reviews say?
We don't hold scored customer reviews for BiochemAPI yet. The independent lab results on this page are the evidence we have.
Which BiochemAPI peptides tested best?
We have graded 1 BiochemAPI product. Retatrutide graded D or E.
Is there a BiochemAPI coupon code?
We don't have a verified BiochemAPI coupon code. A discount changes the price, not what is in the vial.
Ordering from BiochemAPI?
Limited lab record: 4 independent tests, 3 of 4 lots filled to label, median purity 99.7%, 1 of 1 product graded D or E.