We're sorry that you are having a challenge with a coupon code!
There are a few reasons that your coupon code may not be working.
- Most coupon codes only apply for new customers. *
- Most coupon codes are only valid on Starter Kits or the Laundry Kit.
- The referral coupon code will not work if there is a Trial Kit in the cart.
If none of the above explain why your code isn't working, then please email us at firstname.lastname@example.org and we'll look into this for you.
* If you are a returning customer the best way to save on every order of Concentrate and/or Oxygen Boost is to create an auto-ship subscription. With a subscription, your order delivers to you every month (2 months, 3 months or 4 months) and you save 10% off every order!