How to redeem adam20 at GoodLabs checkout

1. Copy the code exactly

   It’s adam20 — the word adam plus 20, all lowercase, no spaces before or after. Use the copy button in the bar at the top of this page; hand-typing is where stray-space errors sneak in.

2. Build your order on goodlabs.com

   Head to goodlabs.com, choose your test or bundle, and start checkout as normal. You don’t need to do anything special before the payment page — the code is applied at checkout, not in the cart.

3. Find the promo field

   At checkout, look near the order summary for a field labeled promo code, discount code, or coupon.

   On mobile, the field is often collapsed: the order summary itself is folded behind a “show order summary” toggle, and inside it the code field can hide behind a “have a code?” link. Tap both open before assuming there’s no field.

4. Paste, apply, and watch the total

   Paste adam20 and hit apply. A valid code updates the order total immediately and adds a visible 20% discount line to the summary. If nothing changes, don’t keep re-clicking apply — jump to the troubleshooting guide instead.

5. Confirm before you pay

   The discount line in the final order summary is your receipt that the code took. Only enter payment details once you see it. If you complete the order without the line, the discount was not applied — codes generally can’t be added retroactively.

Two habits that prevent 90% of coupon frustration

Apply the code before anything else at checkout. Enter it as your first act on the checkout page, before filling in shipping or payment details. If it fails, you find out with zero effort invested, and a fresh session is cheap.

Screenshot the order summary with the discount line. Ten seconds of insurance: if anything looks off in the confirmation email, you have proof of the total you agreed to.