The Spring Sale coupon code at the top of this page takes $80 off sitewide, making it Lumen's hero offer and your best choice for most orders. You'll also find several percentage codes and fixed discounts throughout, along with preset bundles and individual product deals, so the right option depends on what you're buying and how much you spend.
On orders under $800. The $80 off Spring Sale code pulls ahead of the other fixed and percentage discounts. On a $400 order, for example, the $80 code leaves you with $320, while the 10% off codes would save $40 and leave you with $360. The $20 off code saves even less at $20. Note that the Spring Sale code excludes sale styles, so check that your items are eligible before applying it.
On orders of $800 and above. A 10% discount will save more than $80 on larger baskets. On an $850 order, 10% off saves $85, beating the fixed $80. You have three 10% off codes available: one excludes sale styles, one states that exclusions may apply, and one cannot be combined with any other offers. Check the terms of whichever you choose to make sure your items qualify.
On weight loss program purchases. The 55% off sale for the weight loss program stands apart, saving you more than half the regular price. This sale cannot be combined with any other offer, so it is your only choice if that program is in your cart.
On selected Black Friday items. The 20% off Black Friday sale applies to certain products only (the portable metabolism measuring device, app, and related health services). If you're buying those items and nothing else, this sale rate beats the fixed discounts, though it may not beat 10% codes if you're combining it with other purchases at full price.
On preset bundles or individual trackers. Lumen lists several Metabolism Tracker models and bundled packages at fixed prices, such as the tracker at $199 or the Metabolism Booster Package at $249. These are set deals rather than discounts, so apply a code to any of them if you're eligible: the $80 code or a 10% percentage code (if it qualifies) will reduce the listed price further, as long as the code terms allow stacking.
Among the codes, our team tested 1 Lumen code at checkout in the 12 months to November 2026 and confirmed it worked. The largest code we've seen on Lumen in that window was 15% off, which ended in October 2026, so the current $80 Spring Sale code and 10% discounts are solid options right now.
To choose between the offers that apply to your basket, compare the final totals. The $80 code works on most orders under $800 (excluding sale styles); a 10% code saves more on orders of $800 and above (subject to any listed exclusions); and the preset product prices let you stack a code on top. The 55% weight loss program sale and 20% Black Friday sale are fixed to specific products and cannot be combined with codes.