I can’t tell you how long it takes to biodegrade or if the EPA would give it a medal, but I loved the smell, and when I put a couple of capfuls in a bucket and added water, it created thick, rewarding suds that removed grease, bird droppings and shoe prints with minimal elbow grease and the help of a soft brush. I’d give it a medal and wouldn’t mind plunking down the cash for the next bottle.
$39.99; westmarine.com