Here’s everything you need to know about using coupons on Old School Labs™:
- Unless specified, coupon codes do not apply to stacks and subscriptions.
- Coupons are not combinable. Use the one that gives you the highest discount amount.
- Some coupons have time limits. Make sure you use them before they expire.
- We offer 15% off for our military service men and women, and to all students enrolled in US institutions. Head to the Military Discount or Student Discount page to claim your discount.
If a coupon code from an on-going campaign is not working, please contact us.