Favorites
Lumen
Lumen is the world’s first hand-held, portable device to accurately measure metabolism. Lumen measures your metabolism in a single breath and helps you lose weight and optimize your workouts.
Cash back terms and exclusions:
Cash back is not available on Test.
- Coupon codes obtained from sites other than GoCashBack.com may void cash back.
- Bulk/Reseller orders / Purchases with gift cards are not eligible for cash back.
- All cash back is at the merchant's discretion.
5.0% Cash Back
SHOP NOWBy clicking Join Now, you will be automatically registered as a GoCashBack member, and receive your $5 registration bonus. You will also be subscribed to the GoCashBack newsletter, receive information on the hottest sales, and get updates on your personal cash back account.