Both a mobile tanning service and a one-stop bronzing hotspot, Rock & Sol imbues clients’ skin with natural, deeper color without using harmful UV rays. During 10- to 15-minute tailored airbrush sessions, technicians first custom-blend a solution to match each client’s current and desired skin tones. Next, a technician applies two coats evenly over the body, resulting in a coppery glow that, like the Statue of Liberty's original bronze finish, lasts approximately 7–10 days. The odorless, organic, and alcohol-free solution employs an FDA-approved sugarcane derivative called DHA, which reacts with epidermal cells to darken their natural pigment. In addition to their storefront, Rock & Sol also operates a mobile tanning service, journeying to homes, offices, or aquariums in the Austin area to tan gaggles of friends or help albino goldfish finally fit in at school.