In olden times, tanning referred to the process of convincing animals to convert themselves into leather, which was then used to bind books about tanning. Learn tanning's modern definition with today's Groupon to Slick Rock Tanning & Spa. Choose between the following options:

• For $15, you get two sessions in a high-pressure tanning bed (a $60 value).
• For $15, you get one spray-tanning session (a $35 value).

Slick Rock's team of pigment-tinting professionals use high-end products and equipment to enliven dull complexions. A session in the high-pressure Open Sun 1050 bed can darken skin tones in as little as one visit, and produces results that can last up to three times longer than tans gleaned from conventional beds or supermarket display lights. Though high-pressure beds reduce burning risks for the fairest of skin, Slick Rock's system of Norvell sunless tans eschews UV rays altogether. During a 15-minute sunless spray, a trained technician hand-mists clients with one of three customizable solutions that swap the beams of a yellow dwarf star for a safe, sugar-derived compound. Spray tans last five to seven days, depending on color upkeep.

The beauty aestheticians at Slick Rock provide state-of-the-art customer service to match the state-of-the-art equipment in the clean, modern spa atmosphere. Rich, maroon walls flank the tan floors that set skin standards for guests as they breeze past Slick Rock's modern décor toward their bronzing destinations.