Okay, I'm an idiot, I found where you can buy it on their website and it is available a few other places online.

They have one package that includes the laundry detergent, UV spray and a little UV detection light for $25 + $7 shipping.

http://www.atsko.com/shop/catalog/UV-KILLER-SPORT-WASH-COMBO-WITH-UV-LIGHT-BOOK-AND-DVD-p-16235.html

Amazon shows the detergent/UV spray combo pack for $13 + $5 shipping.

So is this something I need or just another gimmick?