A calorie-free synthetic sweetener. It is sometimes added to flavored lubricants to provide a sweet flavor. It stores well, and unlike sugar, it does not increase the risks of yeast infections or bacterial vaginosis.

In the 1970s, saccharin was linked with bladder cancer in rats, which greatly diminished the sweetener’s popularity. However, there is no evidence that saccharin is carcinogenic to humans, and the original study did not account for specific features of rodent biology. Saccharin is now widely accepted as a safe food additive.