Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Gel Formula, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, Duo Pack, (2 x 1L)

Great value twin pack to keep drains clear & have to clear any blockage.

Used this on my bathroom sink as my daughter and I both cut each other’s long curly hair and though we put a plug in the basin, there was still some hair went down the drain and after 5 yrs the sink wasn’t draining well.Poured it into the plug hole before bed, left it over night, and was able to freely run the tap full force to wash any away that had been on the plug hole 1st thing the next morning. Didn’t even need to use the plunger to help it.Worked like a charm, no strong smell just a powerful drain cleaner.Used down bath plug hole too, bath drains much faster now!

I used the Mr Muscle Drain Unblocker on a slow-draining bathroom sink and later on a kitchen drain that had started backing up. It's a thick gel formula that claims to work three times better than bleach and is safe for all pipes.What I liked:Works fast on mild to moderate blockages - In the bathroom sink, it cleared the clog in about 15 minutes. Water started flowing normally again without any plunging.Heavy gel sticks well - Unlike thinner cleaners, this one stays where you pour it. It clings to the blockage instead of running straight through.No strong chemical smell - It has an odour, but it's not overpowering or irritating like some other products.Safe on pipes - Used it on plastic and metal drains with no issues or visible wear. Didn't need to worry about damage.Good value in the duo pack - Two bottles means you're covered for multiple uses or tougher blockages.What I didn't like:Struggles with tougher clogs - It didn't fully clear the kitchen drain on the first try. I had to use a second dose the next day.Needs time to work - Even though it's labelled "fast-acting," you still have to leave it for at least 15 minutes or longer for deeper blockages.Cap design is messy - The bottle cap drips after pouring unless you wipe it down, which is annoying if you store it under the sink.Final thoughts:Mr Muscle Drain Unblocker is a solid, easy-to-use option for everyday clogs in sinks, showers, and drains. It's not magic on major blockages, but for routine maintenance or minor slow drainage, it does the job without harsh fumes or pipe damage. The duo pack is decent value if you want to keep one in the house as backup.

Regular purchase for me and I keep a bottle in the cupboard for emergencies! This is the best sink unblocker which was recommended to me by a plumber.When I notice my drainage struggling I normally plan to unblock that evening - I pour half a bottle directly down the drain (500ml) and leave for 30mins then I pour 2 kettles of very hot water (not boiling) and leave overnight - remember to ventilate the room! Et Voila! Blockage removed by the next morning with fast drainage :)! Very happy to save £350 in plumber call outs.

Always in my cupboard! I find this to be the best drain unblocker on the market, able to deal with hair, soap scum build up and more. This bundle was a good price compared to my supermarket at the time.

Just the best product always does the job great deal on Prime quick deliver easy to use much improved water flow & draining speed very highly recommended & will certainly buy again

Used half a large bottle in my bath drain and the other half on the sink. Cleared the obstruction beautifully and now the water drains fast. Only drawback is that it isn’t suitable for metal sinks so no good in my kitchen

Mr Muscle Drain Unblocker is highly effective for clearing stubborn clogs. The thick gel formula cuts through standing water and quickly dissolves hair, grease, and other build-up, working far better than bleach. It is safe for all pipes and delivers noticeable results within minutes. The only downside is its strong, harsh odour, so good ventilation is a must.