A sodium hydroxide (lye) crystal drain opener is better than anything else, in my experience. I was introduced to Thrift by a plumber and haven't needed to call him since.
I don’t think hair is the problem for me — a day or two of stubble is all that is in there. Usually when the plumber comes he isn’t able to bring up much other than bits of black gunk, which I assume is build up of a combination of soap and mold. Then when he runs the snake, things open up.
I am concerned about things like draino because of environmental impact and potential damage to the pipes. Every plumber I have had come in has recommended strongly against using such products because they say it damages the plumbing.
I have never used Draino or Liquid Plumber.
Over 10 years ago I switched to wetshaving and never had a clog. Every 6-8 weeks, when I cleaned my Cuisinart coffee pot with 2/3 vinegar and 1/3 water, I would put baking soda down the drains, and overflow holes, and pour the hot vinegar/water from the coffee pot down each drain and overflow. Before my youngest moved out, a Zip-it was also my friend. Her hair always clogged up sink and bath drains. When she got married, I even gave her husband a Zip-It.
When I moved into that 1960's house with well water 18 years ago, both bathroom drains ran slow. I replaced the drains and elbows under the sink, but they still ran slow. For me, the problem was clogged overflow holes. It must have taken an hour to clear each overflow with vinegar and baking soda until they ran free. Both drains ran fine after that. If that doesn't help, and the clog's in the wall, than it's plumber time.
A couple months ago, we sold the house and are now in an apartment with soft water. I still use the hot vinegar/water and baking soda in drains and overflow. Why waste a hot pot of vinegar?
Been in my house 20+ years. I have only had issues while my daughters were still living there, lots of hair in the drains. I've probably cleaned the drains a couple times since the last one left about 10 years ago. I just use baking soda and vinegar when it starts to act up (with the girls gone no need to snake for hair).
Got a picture of that pop up with serve?