Opens in a new tab
Free shipping on orders $350+

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.

248COAs publishedCOAs published
>99%Average purity across published COAsAverage purity
100%Of batches tested before they shipBatches tested before shipping

Showing 226–230 of 248 COAs

Tested by Janoshik

PT-141 10mg

Purity & mass
99.83%Avg. purity
Avg. mass11.31 mg
Date tested2025-01-22
Certificate of analysisCOAView report
Tested by Janoshik

IGF-1 LR3

Purity & mass
99.354%Avg. purity
Avg. mass1.03 mg
Date tested2025-01-21
Certificate of analysisCOAView report
Tested by Janoshik

Melanotan-2 12.5mg

Purity & mass
99.406%Avg. purity
Avg. mass12.76 mg
Date tested2024-12-30
Certificate of analysisCOAView report
Tested by Janoshik

Survodutide 10mg

Purity & mass
99.00%Avg. purity
Avg. mass10.86 mg
Date tested2024-12-30
Certificate of analysisCOAView report
Tested by Janoshik

Cagrilintide 10mg

Purity & mass
98.37%Avg. purity
Avg. mass10.31 mg
Date tested2024-12-30
Certificate of analysisCOAView report

Looks like you're in the U.S

For the best experience, shop at the U.S. store. You'll get the right pricing, payment options, and fastest shipping.
Take me to Growth Guys US
Stay on Growth Guys Canada