Growth Guys HGH batches compared: purity, price and price per IU
Checked October 29, 2026 against the Growth Guys shop listings.
On Oct 29, 2026 the shop listed five HGH kit batches, GGC38 to GGC42.
- Listed purity runs from 93.844% to 97.68%.
- Only GGC42 (120 IU, $190) showed as in stock, the other four were out of stock.
- Price per IU is $1.00 for the 280 and 430 IU kits, about $0.95 for the 420 IU kit and about $1.58 for the two small kits.
All five batches
| Batch | Kit size | Price | Per IU | Listed purity | Stock |
|---|---|---|---|---|---|
| GGC38 | 280 IU | $280 | $1.00 | 93.844% | Out of stock |
| GGC39 | 420 IU | $400 | $0.95 | 96.57% | Out of stock |
| GGC40 | 430 IU | $430 | $1.00 | 96.94% | Out of stock |
| GGC41 | 110 IU | $175 | $1.59 | 97.68% | Out of stock |
| GGC42 | 120 IU | $190 | $1.58 | 97.05% | In stock |
Prices in CAD from the Growth Guys HGH category page, Oct 29, 2026, before shipping and tax. Purity is the figure shown on each batch's listing. It is per batch, not one pass mark and not an average.
How to read this
- Each batch number is a separate production lot with its own listed purity. Two kits with the same size can carry different numbers.
- The purity figure and the price do not move together here. The lowest price per IU (GGC39) and the lowest listed purity (GGC38) are different batches.
- Price per IU is arithmetic only. Dividing price by kit size says nothing about quality, see how to compare price per unit.
- Stock changes. Four of five were out of stock when I checked, so confirm on the shop before you plan around a batch.
With DEAL10 and Bitcoin
| Batch | Price | With DEAL10 (10%) | Plus Bitcoin (28% total) |
|---|---|---|---|
| GGC42 120 IU | $190.00 | $171.00 | $136.80 |
| GGC41 110 IU | $175.00 | $157.50 | $126.00 |
| GGC40 430 IU | $430.00 | $387.00 | $309.60 |
| GGC39 420 IU | $400.00 | $360.00 | $288.00 |
| GGC38 280 IU | $280.00 | $252.00 | $201.60 |
The discounts multiply, 0.90 x 0.80 = 0.72, see the stacking math. Free shipping starts at $350, see free shipping.
Before you choose
- Match the batch number on your kit to its report, see how to find your batch.
- Read the basics first: HGH kits in Canada.
Ready to order?
Enter the code at checkout. If you copied it, just paste it in the Promo code box in the order summary, then press Apply. It does not apply by itself. Confirm the discount line before you pay.
Common questions
Which Growth Guys HGH batch is in stock?
On Oct 29, 2026 only GGC42, the 120 IU kit at $190, showed as in stock. The other four batches were out of stock.
What is the listed purity of each HGH batch?
GGC38 93.844%, GGC39 96.57%, GGC40 96.94%, GGC41 97.68%, GGC42 97.05%, each as shown on that batch's listing.
Which HGH kit is cheapest per IU?
By arithmetic, GGC39 at about $0.95 per IU ($400 for 420 IU). GGC38 and GGC40 are $1.00 per IU. That says nothing about quality.
What does the 120 IU kit cost with the code and Bitcoin?
About $136.80, because 0.90 x 0.80 = 0.72 of $190.