Well, the whole point of Xyon's topical Finasteride is the gel. According to Dr. Hasson, they have experimented with different kinds of liquid solutions that other companies use like Propylene Glycol but all of these solvents went systemic which led to adverse side effects. The gel they came up with should theoretically limit the absorption of Finasteride into the bloodstream making it less likely to result in unwanted side effects. The downside is, it's a bit more difficult to apply properly to your scalp.