New York, NY, Oct. 27, 2025 (GLOBE NEWSWIRE) -- Following a challenge from GuruNanda LLC, BBB National Programs National Advertising Division determined that The Procter & Gamble Company (P&G) provided a reasonable basis for quantified express claims that its Crest 3D Whitestrips remove years of stains. P&G and GuruNanda are competitors in the oral care market. P&G’s Crest 3D Whitestrips come in multiple versions each with a different concentration of hydrogen peroxide, application duration, and number of t ...