Kolynos

Kolynos is a line of oral care products created by Newell Sill Jenkins in 1908 and acquired by Colgate-Palmolive in 1995.

Because of antitrust concerns at the time of the acquisition, Colgate-Palmolive agreed to suspend marketing Kolynos-branded toothpaste in Brazil for a number of years, but Colgate-Palmolive shortly began selling what was essentially the same product, with very similar packaging and marketing, under a new brand called Sorriso ("Smile" in Portuguese), successfully transferring most of the customer loyalty to the new line of toothpaste.

The Kolynos brand is mentioned in a passage in The Catcher in the Rye (1951) by J. D. Salinger: Everybody was asleep or out or home for the week end, and it was very, very quiet and depressing in the corridor.

The brand is also mentioned in The Black Gang by Herman Cyril McNeile: By the way, my boy, you skimped your teeth pretty badly to-night.

Most of your molars must be sitting up and begging for Kolynos if that's your normal effort.It also finds a mention in Vikram Seth's celebrated novel A Suitable Boy: "Then why don't you go there and ask him about himself', said Malati, who believed in the Approach Audacious.