K-Y Jelly

K-Y Jelly is a water-based, water-soluble personal lubricant produced by Johnson & Johnson. According to the company, "The origins of the brand name 'K-Y' are unknown. Two popular hypotheses are that it was created in Kentucky, hence 'K-Y', or that the letters represent the key ingredients used to make the lubricant, neither of which are proven." Historically the main ingredient is methyl cellulose with carboxymethyl cellulose as a constituent ingredient.