Buster Bathroom Drain Unblocker (Pack of 2 x 300ml) Fast-Acting Sink Unblocker Dissolves Hair, Sludge and Soap, Drain Cleaner Clears Blockages in Shower, Bath and Bathroom Sink Pipes - Made in UK

Worked like described. I pour it in the shower drain and left it overnight. No more blockage and now free flowing. It is good value for money.

Had a problem with water not draining for the bathroom sink and tub which are in the same line. It was easy to use and after leaving it for a while to work its magic, it sorted the problem out very quickly. It saved me having to open up areas to check pipes or even have to call a plumber out to check the drain outside the home which the bath pipes lead too. Highly recommend. Can’t say what was causing our blockage but what ever it was, this worked on it. It does have a bad smell but worth it using.

Only used 1 bottle so far on the hallway bathroom sink but the results were very good. My only gripe is that the bottle says to only leave it to work "for 5 minutes" but suggests that you can leave it longer if needed. I highly recommend ignoring the former and listening to the latter. Just leave it to work overnight. 5 minutes is not long enough.

Excellent product. Pleasantly surprised! I had tried everything in the past including spirit of salts and was sceptical but this thing worked like a magic. 100% recommended

I was so happy that bathroom drain unblocked it work so good and the instructions is so easy to follow and good value for money.

Did the job. The instructions is to use the whole bottle. I left it for a few hours and poured a kettle of hot water down the plug hole. It cleared the drain well. Glad it came in a box of 2 as have a bottle for next time.

Does not clear completely, but helped me clear blockage, I had to call in a plumber to finish the job.

Definitely recommend good drain unblocker probably one of the best ones you can buy