Groundbreaking New Campaign Unveiled for Colgate Optic White Purple Featuring K-Pop Icon IU, Redefining Oral Care as a Beauty Essential IU’s Beauty Hack for a Whiter Smile SINGAPORE - Media OutReach Newswire - 15 August 2025 - Colgate-Palmolive has launched a new campaign for Colgate Optic White Purple, starring global K-Pop idol and beauty icon, IU.