Lumineux 2-in-1 Whitening Pen Enamel Safe and Clinically Proven to Whiten Without The Sensitivity – Removes Coffee, Tea, and Smoking Stains

Customers find the tooth whitening pen easy to use and appreciate that it doesn't cause sensitivity. The effectiveness and whitening results receive mixed feedback - while some report results in a few days, others say it didn't work at all. The taste and durability also get mixed reviews, with some finding it tasty while others disagree, and one customer reporting the gel ran out within three days. Customers consider the product not worth the money.