The transliteration is also a near-pun: 高 (high) + 露 (reveal/show) + 洁 (clean) — roughly 'highly revealing cleanness', a flattering match for a toothpaste brand.
In Pop Culture
Colgate-PalmoliveGāolùjié-Bāngmiè
Colgate-Palmolive Company
American consumer-products multinational founded in 1806; Colgate (高露洁) is its flagship oral-care brand and one of the most widely sold toothpastes in China.