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Unlike strips, these usually combine technology, like LED lights, with active ingredients like hydrogen peroxide and carbamide peroxide that do the actual whitening.—Iman Balagam, Vogue, 13 Apr. 2025 However, always make sure to test patch before trying a new skincare product.
Urea, also known as carbamide, is naturally produced by the liver.—Sherri Gordon, Health, 19 Mar. 2025 The most popular ingredients are hydrogen peroxide and carbamide peroxide, which bubble up and cleanse yellow teeth at a microscopic level and remove stains along the tooth enamel.—Jennifer Hussein, Allure, 9 Jan. 2025 The formula is made with carbamide peroxide, which is more gentle on the teeth and gums compared to other whitening methods.—Jessie Quinn, Peoplemag, 15 May 2024 See All Example Sentences for carbamide
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