Growth Guys 30% off: what stacks and what does not
Checked October 29, 2026 against the Growth Guys FAQ and my own checkout.
I did not find a 30% code.
- The 10% code DEAL10 plus the 20% Bitcoin discount comes to 28% off, and about 42% off if your items come as 10-packs too.
Why it is 28% and not 30%
The discounts multiply instead of adding. You pay 90% after the code, then 80% of that after the Bitcoin discount: 0.90 × 0.80 = 72%, so 28% off. With 10-pack pricing (20% off single vials) on top: 0.80 × 0.90 × 0.80 = 57.6%, so about 42% off.
On a $100 cart
| What you use | You pay | Off |
|---|---|---|
| DEAL10 only | $90.00 | 10% |
| Bitcoin only | $80.00 | 20% |
| DEAL10 + Bitcoin | $72.00 | 28% |
| 10-pack + DEAL10 + Bitcoin | $57.60 | about 42% |
Merchandise only, before shipping and tax. The vendor allows one coupon per order, so a second code will not stack. Confirm the discount lines at your own cart.
More detail
See can you stack Growth Guys codes and the Bitcoin discount guide, including the $350 free-shipping line.
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
Is there a Growth Guys 30% off code?
I did not find one. DEAL10 is 10% off, and with the 20% Bitcoin discount it is 28% off.
How do I get the biggest discount?
10-pack pricing, DEAL10 and Bitcoin together come to about 42% off single-vial prices.
Can I use two codes?
No. The vendor allows one coupon per order.