WHITENING
Clinical trials for WHITENING explained in plain language.
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Toothpaste showdown: which whitens better in just one week?
Symptom relief CompletedThis study tested whether a Colgate toothpaste with 5% hydrogen peroxide whitens teeth better than a toothpaste without hydrogen peroxide. 80 healthy adults with naturally darker teeth used one of the two toothpastes for one week. Researchers measured changes in tooth color using…
Matched conditions: WHITENING
Phase: PHASE3 • Sponsor: Colgate Palmolive • Aim: Symptom relief
Last updated Apr 02, 2026 10:11 UTC
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One-Brush whitening test: does special toothpaste work instantly?
Symptom relief CompletedThis study tested whether a toothpaste with hydrogen peroxide removes surface tooth stains better than a regular fluoride toothpaste after just one supervised brushing. It involved 80 healthy adults who were prone to tooth staining. Researchers compared the immediate whitening ef…
Matched conditions: WHITENING
Phase: PHASE3 • Sponsor: Colgate Palmolive • Aim: Symptom relief
Last updated Mar 25, 2026 14:08 UTC