The members of the Urine Therapy Meetup group believe drinking the bodily fluid or rubbing it on their skin has health benefits untapped by others too squeamish to take advantage, 9News.com reported. Experts, on the other hand, aren’t so sure.

Christopher Macor is among the members who gather in a public library in the Colorado city once a month. He told 9News.com that he suffered with eczema which regular creams couldn’t clear, but the itchy condition disappeared when he started soaking his hands in urine.

Macor explained people have been using their pee for treatment for 4,000 years: “It’s the fluid of your body that’s being given to you.”