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Mirin Labs

Every certificate.Every batch we ship.

Every production lot is run on an 8-test analytical panel by an independent US laboratory — identity, purity, net content, endotoxin, microbial, fentanyl, heavy metals and pH. Published batch reports appear below as they are added.

9Reports publishedPublished certificates
99.80%Average purityAcross 9 reported values
What Gets Tested

The 8-Test Panel

Every batch is checked across a range of quality and safety tests before it is released. Here’s what each test actually looks for.

Identity

Checks that the product contains the correct compound.

LC-MS

Purity

Measures how much of the sample is the intended compound compared with impurities.

HPLC-UV · 99%+

Amount Per Vial

Checks that each vial contains the stated amount of product.

QUANTITATIVE TESTING

Endotoxins

Checks for bacterial toxins that could contaminate a sample.

LAL TESTING

Microbial Contamination

Checks for signs of bacterial or other microbial contamination.

PCR TESTING

Fentanyl Screening

Checks the sample for the presence of fentanyl.

SCREENED NEGATIVE

Heavy Metals

Checks for unwanted metals such as lead, mercury, arsenic and cadmium.

4-METAL PANEL

pH Level

Checks the acidity of the solution after it has been reconstituted.

TARGET pH 4.5–7.0

GLP-2TR 50mg - LEAR2608270641

Purity
99.86%
Net content
52.66 mg
Lab
Freedom Diagnostics

Tirzepatide (sample: glp1) - 150189

Purity
99.868%
Net content
29.05 mg
Lab
Janoshik Analytical
Tested
April 28, 2026

Tirzepatide - 20mg - COA-2026-CYIZ2U

Purity
100%
Net content
20.54 mg
Lab
ILS Laboratories
Tested
July 24, 2026

Retatrutide - DM2L-GRUC

Purity
99.786%
Net content
30.097 mg
Lab
Accumark Labs
Tested
September 3, 2026

NAD+ 1000mg - LEAR2608270638

Purity
99.97%
Net content
1055.3 mg
Lab
Freedom Diagnostics

MOTS-c 40mg - LEAR2608270640

Purity
99.64%
Net content
43.79 mg
Lab
Freedom Diagnostics

GTT1500 - GTT1500-20260907S7260

Purity
99.81%
Net content
1464.81 mg
Lab
TJQXGD

HGH (Somatropin) - 2KH6-23U5

Purity
99.516%
Net content
15.808 mg
Lab
Accumark Labs
Tested
September 16, 2026

HGH (Somatropin) - 7SWE-NAL2

Purity
99.74%
Net content
10.633 mg
Lab
Accumark Labs
Tested
September 14, 2026