Belkyra is an individually-tailored, injectable treatment that permanently destroys fat cells under the chin. More than 67 percent of people are bothered by the fat or fullness under their chin, similar to the percentage of patients who are bothered by lines and wrinkles. BELKYRA contains a synthetic version of deoxycholic acid1 which imitates naturally-occurring deoxycholic acid.2 when injected into the destruction of fat cells.1 Once destroyed, those cells cannot store or accumulate fat.