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Growth Guys CanadaCAD pricing · Ships within Canada only
Growth Guys USUSD pricing · Ships within the U.S. only

Independent third-party testing

Certificates of Analysis (COAs)

Every batch is tested by Janoshik Analytical before it ships. Search by product name or batch number to find its COA. Each product’s current COA is also on its product page in the shop.

251COAs publishedCOAs published
>99%Average purity across published COAsAverage purity
100%Of batches tested before they shipBatches tested before shipping

Showing 1–5 of 251 COAs

Tested by Janoshik

Retatrutide 20mg - RET29

Purity & mass
99.64%Avg. purity
Avg. mass23.24 mg
Date tested2026-11-03
Certificate of analysisCOAView report
Endotoxin
<1 EU/vial
Date tested2026-11-03
Certificate of analysisCOAView report
Tested by Janoshik

CJC-1295 no DAC 10mg - CJC03

Purity & mass
99.54%Avg. purity
Avg. mass11.13 mg
Date tested2026-07-30
Certificate of analysisCOAView report
Endotoxin
6.006 EU/vial
Date tested2026-07-30
Certificate of analysisCOAView report
Tested by Janoshik

MOTS-C 40mg - MOTS10

Purity & mass
99.57%Avg. purity
Avg. mass45.97 mg
Date tested2026-10-21
Certificate of analysisCOAView report
Endotoxin
2.379 EU/vial
Date tested2026-10-20
Certificate of analysisCOAView report
Tested by Janoshik

Human Chorionic Gonadotropin (hCG) 7000iu - HCG07

Purity & mass
7771 IUAvg. mass
Date tested2026-01-16
Certificate of analysisCOAView report
Tested by Janoshik

ARA-290 10mg - ARA02

Purity & mass
99.94%Avg. purity
Avg. mass11.99 mg
Date tested2026-10-06
Certificate of analysisCOAView report
Endotoxin
<1 EU/vial
Date tested2026-10-06
Certificate of analysisCOAView report