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

Choose your store

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.

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

Showing 131–135 of 248 COAs

Tested by Janoshik

Tadalafil 20mg Tablets - TAD01

Purity & mass
18.81 mgAvg. mass
Date tested2025-12-09
Certificate of analysisCOAView report
Tested by Janoshik

NAD+ 500mg - NAD02

Purity & mass
522.45 mgAvg. mass
Date tested2025-12-08
Certificate of analysisCOAView report
Tested by Janoshik

GLOW Blend - GLOW05

Purity & mass
66.19 mgAvg. mass
Date tested2025-12-02
Certificate of analysisCOAView report
Tested by Janoshik

5-Amino-1MQ 12.5mg - 5AM01

Purity & mass
12.72 mgAvg. mass
Date tested2025-11-26
Certificate of analysisCOAView report
Tested by Janoshik

Retatrutide 20mg - RET14

Purity & mass
99.18%Avg. purity
Avg. mass22.09 mg
Date tested2025-11-13
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