A New York City couple was sentenced to prison on charges of illegally injecting women in Honolulu with wrinkle-reducing drugs similar to Botox.

Bu Young Kim was sentenced to three months in prison, and her husband, Chan Hui Cho, was sentenced to two months after federal authorities say they imported drugs from South Korea to administer in Hawaii, Hawaii News Now reported Thursday. The couple was arrested in March 2016 and entered guilty pleas in February.

Authorities say the couple would fly to Hawaii, where Kim would inject women, working out of places like hotel rooms. The couple charged up to $500 for the treatments that are allowable only by licensed practitioners.

Kim’s attorney, Michael Green, said his client cooperated with authorities, and “she didn’t set out to hurt anyone.”