So over the years I've tried various drain uncloggers. Drano, Liquid Plumber, etc. None of them have ever worked for me. So my sink has been slowly draining more slowly lately, so it was time to try those products out again. Last time I had to take the pipes apart and use a coat hanger to fish out the nasty stuff clogging my drain. This time, I ran into Instant Power Hair & Grease Drain Opener by the Scotch Corporation. Shit worked. Drain unclogged first try.
Hate to be the alligator living in my sewer now though. The bottle is enclosed in a plastic bag for your protection and the label says to put it back in the bag after use.