Growth Guys Bitcoin discount: 20% off, and up to 42% stacked
Checked October 29, 2026 against the Growth Guys FAQ and my own checkout.
choosing Bitcoin at checkout takes 20% off automatically.
- Growth Guys says that discount is applied after sale prices and coupons, so pairing it with a 10% code gives a combined 28% off the merchandise, not 30%.
- With a 10-pack on top it reaches about 42%, see the stacking guide.
Why it is 28% and not 30%
Percentages applied one after the other multiply. The 10% code leaves you paying 90% of the price. The Bitcoin discount then takes 20% off that remaining amount, so you pay 0.90 × 0.80 = 72%. You save 28%. Pages that say "30% total" are adding the two numbers together, which is not how the store describes it.
What it looks like on real carts
| Cart subtotal | Card + code (10%) | Bitcoin only (20%) | Bitcoin + code (28%) |
|---|---|---|---|
| $100.00 | $90.00 | $80.00 | $72.00 (save $28.00) |
| $150.00 | $135.00 | $120.00 | $108.00 (save $42.00) |
| $250.00 | $225.00 | $200.00 | $180.00 (save $70.00) |
| $350.00 | $315.00 | $280.00 | $252.00 (save $98.00) |
Figures are the merchandise subtotal before shipping and tax. Shipping is $20, or free at a $350 subtotal (see the free shipping guide).
How to use it
- Add your items and go to checkout.
- Enter DEAL10 in the Promo code box in the order summary and press Apply.
- At the payment step, choose Bitcoin. The option shows "20% off" with your saving. On my sample $150 cart it showed a $30 saving before any code.
- Check the totals before you place the order.
What to know before paying with Bitcoin
- You need a wallet with funds ready. The checkout has a "First time? See how to pay" link if you have not done it before.
- Network fees and price moves are on you. The amount you send is fixed in dollars at checkout, but fees depend on your wallet and the network.
- Bitcoin payments generally cannot be reversed the way a card payment can. Growth Guys also says all sales are final, so check your order carefully before sending.
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
Does the Growth Guys Bitcoin discount stack with a code?
According to the Growth Guys FAQ, yes. The 20% Bitcoin discount is applied after sale prices and coupons, and you can use one coupon per order.
What is the biggest discount I can stack?
10-pack pricing, the 10% code and Bitcoin together: about 42% off ten single vials (0.80 x 0.90 x 0.80 = 0.576).
Is the combined discount 30%?
No. The discounts multiply, so a 10% code plus 20% for Bitcoin comes to 28% off the merchandise subtotal. Add 10-pack pricing and the best combination is about 42%.
Is the Bitcoin discount a promo code?
No. It applies automatically when you select Bitcoin as the payment method, so there is nothing to type in.