NEW YORK — Mint-chocolate toothpaste?

Procter & Gamble said Tuesday it is launching a line of Crest toothpastes called Be that feature nontraditional flavors, including Mint Chocolate Trek, Vanilla Mint Spark and Lime Spearmint Zest.

The new line comes as Procter & Gamble turns toward new product innovation to spur growth in developed markets such as the U.S. The world’s largest consumer products maker, which makes goods ranging from Tide detergent to Gillette Razors, said Friday its net income fell 16 percent as it faced a tough comparison with last year’s results.

P&G marketing director Rishi Dhingra said the toothpastes were designed to “allow for an unexpected experience through flavors that offer personal expression.”

It’s not the first time Crest has tried unusual flavors in toothpaste. In 2003, Crest introduced Crest Whitening Expressions in flavors such as Cinnamon Rush, Fresh Citrus Breeze and Extreme Herbal Mint.