XionLab Safer, Greener Drain Clog Remover – Industrial-Strength Liquid Drain Cleaner for Hair & Grease – Septic Safe, Odorless, Biodegradable for Bathroom Sink, Bath Tub, & Shower Drain – 32 oz

It works! It's a little pricey but compared to the expense of a plumber +++In the past all others didn't do what this did. Be sure to follow instructions exactly. Definitely leave over night and boil a large pot of water (tea pot is not enough) and slowly pour down the drain. Voila! ++If this is biodegradable and a safer drain cleaner why all the dangerous warnings. Doesn't read as safe to me. Not sure maybe a requirement??Regardless use precautions as the instructions state. I wore gloves and eye protection. Cover any nearby appliances, dishes etc. or move away.The little inner silver plastic neck cover is hard to get off. I had to use a knife to puncture it and lift it off. That is okay for non toxic products but this could cause splatter in your face if not careful.It had a hard shrink wrap cover on the outer neck to prevent spills in shipment. ++

This product worked great! I had a slow draining bathroom sink that I suspected was junked up by some beauty products used during mini-facials. One application and the sink is back to normal with no back up or draining issues. Bonus is there is absolutely no smell at all!

Excellent product. Good value. Would definitely recommend. Fast shipping.

This worked to clear up a pretty slow moving shower drain and now I have started to use it on a maintenance level so that hopefully the drains will stay free flowing. However, I'm only rating four stars because the second time this was delivered, the bottle came without a cap in a box along with human and feline food items. There wasn't any damage or leakage, but it was still a bummer to have to go through a somewhat panicked moment and also it was annoying to have to use the entire bottle at once. I was planning to split it between drains anyway, but I would have preferred to be able to do them separately in time so that it was easier to avoid running water in one instead of both at the same time while the product was working.

My tub consistently ges clogged with hair. Over the years I've tried every drain cleaner you can imagine -- literally every one. Even used raw lye a few times. Nothing worked.Then I discovered this stuff on Bob Villa's site. His review says this is specifically for hair clogs and is the best.I doubted it would work, because as I said, I have literally tried everything. So I was more than skeptical. Plus, it's sort of pricey at twenty bucks a bottle (two uses). At the time I purchased this, the bottle with the two plastic hair grabbers was actually cheaper than the solo bottle so I bought that (it's the same price now).I didnt use the hair grabbers because they are sort of flimsy and the last thing I need is for it to get stuck and have a plastic strip clogging my drain along with the hair.Anyway, I meticulously followed directions and viola! the drain was cleared.After maybe a month I notice the drain was getting sluggish again and I found out why. My tub didnt have any hair catcher in the drain, just those wide holed circular things that do next to nothing for catching hair. So I removed it and put in a mushroom hair catcher you can buy on Amazon (buy the rubber ones, not the metal becauce they are way easier to clean).I went through the process again and haven't had an issue since.One caveat -- the instructions say to throw boiling water down the drain after the product sits in the drain roughly overnight. That's fine unless you have plastic pipes. Super hot water will temporarily expand your pipes at the joints and a little it of water will leak out. You won't notice it from your tub because it's not enough to seep thru your floor/ceiling.The only reason I know this is that we're renovating our kitchen which is directly under the upstairs bathroom and right now the ceiling is getting replaced so I can see directly up into the floor area of the bathroom. Putting boiling water down the drain upstairs caused maybe two tablespoons of water to drip down. I'd imagine if you use this stuff (or any other brand that says to add boiling water) frequently it could permanently mess up the joints in your pipes. But I'm not a plumber. Maybe just hot water from the tap is better/safer.

I've used this product on two separate occasions- once on a clogged shower drain in a condominium and once on my apartment's sink. Both instances had drains in pretty bad shape. Neither were totally clogged though. And in both instances the full bottle was required across two overnight applications and although the drains were not fully cleared they were dramatically improved. One important step which is easily missed is to pour hot water down the drain after letting the product work overnight. I did this only after using the full bottle and may have had better luck after each application instead. You just have to be careful with the temperature of the water not exceeding a PVC joint's specifications, which I've read as 175 degrees F have also seen 150 degrees thrown around too. If you don't have any plastic joints in your plumbing then I doubt this level of care is required.I debated knocking off a star for the product not being 100% effective and rather closer to 80%, but since it's environmentally friendly and non-toxic I'm good with a trade off. Heavy duty drain cleaners most likely present far better value for your $ but are also likely neither eco-friendly nor non-toxic. In a condominium I was concerned about using stronger stuff without board approval, and in my own apartment I was concerned about using stronger stuff because my bathroom is windowless and poorly ventilated. So in a way this is a niche product. I think if the price goes up any further I will knock off a star. Otherwise, this bottle is a solid choice if you properly follow the instructions and do not have a drain that is an utter disaster (fully clogged). If so, I would call a plumber instead.