To my surprise Drainbo works! Having recently used other chemicals to clear the drains in my kitchen, I used this in my slow running bathroom sink with excellent results. Be sure to shake the bottle thoroughly before use, as this product uses “all-natural microbes” to eat away at the gunk in the pipes. I included pictures of the back of the bottle, where the active ingredients are clearly listed.
HappyCustomerHere via Homedepot.com US January 8, 2016