That'So Professional 1L Tanning Solution That'So Sale! Color 8% DHA Dark 10% DHA Ultra Dark 12% DHA Miracle Dark 14% DHA Extra Dark This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. The perfected That'So bronzing formulation for spray tan services. Offers streak-free and flawless application. bronzer dark professional spray tan tanning solution