LUZE Fit Intensity: FDA finds undeclared sibutramine

On September 15, 2026, the FDA advised consumers not to buy or use LUZE Fit Intensity. Laboratory analysis confirmed sibutramine that was not listed on the label. The warning concerns the named product and tested sample; it does not establish the contents of every bottle.

What the FDA found

The FDA says LUZE Fit Intensity was promoted for weight loss online, including on shop.app, and possibly in some stores. Its laboratory analysis confirmed sibutramine missing from the product label. The notice does not publish a tested dose or lot number, or establish that every bottle has the same contents. [1]

Why hidden sibutramine matters

Sibutramine was formerly used as a prescription weight-loss drug, then removed from the U.S. market after evidence of increased heart attack and stroke risk. FDA says it can substantially raise blood pressure or heart rate in some people, with added concern for people with heart disease, heart failure, arrhythmia, or a prior stroke. It can also interact dangerously with other medicines. [1][2]

If you bought or took it

Follow the FDA's advice and do not use the product. If you have taken it, especially if you have heart or circulation problems, symptoms, or take other medicines, contact a healthcare professional promptly and show the package. Do not stop prescribed treatment on your own. For severe symptoms, seek urgent care. Suspected reactions can be reported to FDA MedWatch. [1]

What the warning does not prove

The notice does not state the amount of sibutramine, identify every seller, or prove what a seller knew. It does not establish that every bottle is identical, or that all weight-loss supplements contain hidden drugs. FDA says it cannot test every product. This is a product-specific warning for the United States, not a finding about the legal status or availability of LUZE Fit in every country. [1]

Did the FDA find sibutramine in LUZE Fit Intensity?

Yes. FDA says laboratory analysis confirmed sibutramine that was not listed on the label. The agency advises consumers not to buy or use the product. [1]

Does the warning prove that every bottle has the same contents?

No. The notice reports a product-specific laboratory finding but does not say that every bottle or lot has an identical formula. [1]

Our recommendation

We do not recommend LUZE Fit Intensity. The FDA confirmed an undeclared drug in the named product and directly advises consumers not to buy or use it. [1]