Best Biodegradable Drain Unblockers of 2025

Name: Mr Muscle Biodegradable Drain Unclogger & Cleaner
Brand: Mr Muscle

Kiera Browne

Last Updated: 2 Feb 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Biodegradable drain unblockers are a new and innovative solution to the age-old problem of clogged drains. These products are designed to dissolve blockages in a safe and eco-friendly way, without the need for harsh chemicals that can damage pipes and harm the environment. Made from natural ingredients, they are effective at breaking down grease, hair, and other common causes of drain blockages, leaving pipes clean and free-flowing. With increasing awareness of the impact that traditional drain unblocking products can have on the environment, biodegradable drain unblockers offer a sustainable and responsible alternative that is both effective and safe.

At a Glance: Our Top Picks

#TOP 1

Mr Muscle Biodegradable Drain Unclogger & Cleaner

9.8

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Mr Muscle Biodegradable Drain Unclogger & Cleaner

#TOP1

9.8

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#TOP 2

Vamoosh Plughole Unblocker, Drain Unblocker Bathroom

9.7

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Vamoosh Plughole Unblocker, Drain Unblocker Bathroom

#TOP2

9.7

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#TOP 3

Buster Bathroom Drain Unblocker 300ml

9.5

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Buster Bathroom Drain Unblocker 300ml

#TOP3

9.5

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Top 5 Biodegradable Drain Unblockers

#TOP 1

Mr Muscle Biodegradable Drain Unclogger & Cleaner

Mr Muscle

371399

Mr Muscle Biodegradable Drain Unclogger & Cleaner, Biodegradable Formula to Clear Slow Drains, Safe on All Pipes, 750ml

9.8

FTB Score

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Features

Non-Corrosive To Pipes: Safe For All Bathroom Pipes To Solve Clogs In Shower Drains, Bathroom Sink, And Bathtub Drains And Get Everything Flowing Freely Again.

Solve Your Slow Drain. Bring The Biodegradable Muscle

Works Its Magic In 5 Hours: Use Mr Muscle Biodegradable Drain Unclogger Overnight In Your Bathroom Plughole, And You Can Wake Up To A Clear, Flowing Drain.

Recycled & Renewable: Each Bottle Is Made From 50% Recycled Plastic* And Filled Using 100% Renewable Electricity

Packs 3 Treatments Per Bottle: A Biodegradable Formula For Three Full Bathroom Drain Unblocking Treatments Without Harsh Chemicals. More Effective Than Home Remedies To Clear Clogged Bathroom Drains.

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#TOP 2

Vamoosh Plughole Unblocker, Drain Unblocker Bathroom

Vamoosh

Unlocker 600ml

600ML Bottle

Vamoosh Plughole Unblocker, Drain Unblocker Bathroom - Dissolves Hair, Bleach-Free Bathroom Sink Unblocker, Septic Tank Safe, Fast Acting, Safe & Powerful - 2 Doses (600ml)

9.7

FTB Score

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Features

SEPTIC TANK SAFE FORMULA - Ideal For Homes With Septic Systems, This Fast-Acting Bathroom Drain Unblocker Is Safe And Powerful. It's Safer For The Environment, Letting You Unblock Clogs Worry-Free.

DISSOLVES HAIR WITHOUT NASTY CHEMICALS - Blast Stubborn Blockages Caused By Hair And Soap Scum With This Drain Unclogger! Using Hair-Dissolving Technology, It Breaks Down Keratin In Human And Pet Hair, Leaving Your Drains Free-Flowing And Odour-Free.

FAST-ACTING & EASY TO USE - Simply Pour Half The Bottle (300ml) Of Bathroom Drain Unblocker Down The Plughole, Leave It To Work For At Least 30 Minutes (or Overnight For Tougher Clogs), And Then Flush Thoroughly With Hot Water (2 Doses Per Bottle)

100% RECYCLABLE & BIODEGRADABLE - The Hair-Dissolving Experts At Vamoosh Not Only Care For Your Home But Also For The Planet. The Bottle Is 100% Recyclable And Liquid Is Biodegradable, So You're Making An Environmentally Responsible Choice.

100% CHLORINE BLEACH FREE - Formulated To Be Safe And Effective, This Non-Corrosive Drain Unblocker Won't Damage Your Pipes, Leaving Your Sinks & Plugholes Clear And Free Flowing.

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#TOP 3 Best Drain Unblocker for Bathroom

Buster Bathroom Drain Unblocker 300ml

Buster

03153/A

300 ml (Pack of 3)

Buster Bathroom Drain Unblocker 300ml, Pack of 3 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water

9.5

FTB Score

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Features

TARGETS HAIR & SLUDGE: Buster Clears Bathroom Plugholes From The Build-Up Of Hair, Soap Scum And Sludge; These Are The Common Plughole Nasties That, If Not Treated Regularly, Cause The Dreaded Bathroom Plughole Blockage

BATHROOM SINK UNBLOCKER: Buster Bathroom Plughole Unblocker (Pack Of 3x 300ml) Is The One-Shot Drain Unblocker Specially Designed To Blast Away Hair And Soap Scum In Bathroom Drains Fast

YOUR PLUGHOLE EXPERTS: For Over 30 Years We've Worked Obsessively To Make Plughole Care Products That Are Effective And Simply Get The Job Done, From Clearing And Preventing Blockages To Cleaning And Sanitising

STOPS SLOW DRAINING WATER & BLOCKAGES: Whether It's A Full Blockage Or Slow Draining Water, Buster's Fast-Acting Formula Gets To Work In 15 Minutes (for Best Results Leave Overnight), Dissolving Hair And Clearing Sludge To Keep Water Flowing Freely

FOR SHOWERS, BATHS & BASINS: Buster Bathroom Plughole Unblocker Is Specially Formulated To Tackle The Causes Of Blockages Inside Your Bathroom Pipes - It's Suitable For Showers, Baths, Sink Plugholes And Is Safe To Use On Septic Systems

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#TOP 4

HG ECO Drain Unblocker, Kitchen Sink & Bathroom Sink Unblocker

681100106

1 - Pack

1000 ml (Pack of 1)

HG ECO Drain Unblocker, Kitchen Sink & Bathroom Sink Unblocker Cover

HG ECO Drain Unblocker, Kitchen Sink & Bathroom Sink Unblocker, Heavy Duty Drain Unblocker, Bath Traps & Waste Water Pipes, Eco Conscious HG Cleaning Products, Recyclable - 1000ml (681100106)

9.3

FTB Score

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Features

Powerful Plug Hole Unblocker: Bathroom And Kitchen Drains Tackles And Removes Various Blockages, Including Food, Fat, Oil And Soap. This Formula Is Kinder To The Environment Using Non Toxic Chemicals

HG Drain Unblocker Liquid: Bath Drain Unblocker And Sink Unblocker Liquid, Ideal For Use In Bathrooms, Kitchens, Washrooms And Utility Rooms. The Plug Unblocker Quickly Gets Rid Of Any Blockages

HG Eco Cleaning Products For Your Home: HG Professional Grade Cleaning Formulas Are Ultra Effective Yet Kinder To The Planet. Free From Preservatives, Phosphates, Colourings And Microplastics

Easy To Use Bath Unblocker: Heavy Duty Shower Drain Unblocker Liquid Ready To Tip Down The Plug Hole, Does Not Require Dilution. Highly Concentrated, Works In Just 30 Minutes. Simply Pour, Wait, Flush

1 X HG ECO Drain Unblocker, 1000ml, In A Bottle Made Of Recyclable Materials. Discover The Range Of HG Household Cleaning Products, With HG Bathroom Cleaning Products And HG Bathroom Floor Cleaner

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#TOP 5

HG Kitchen Drain & Plug Unblocker

H/G481100106

HG Kitchen Drain & Plug Unblocker, Natural Drain Unblocker, Heavy Duty Drain Cleaner, Kitchen Sink Unblocker & Kitchen Cleaner for Pipes, Septic Tank Safe - 1 Litre

9.2

FTB Score

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Features

Item Trademark: HG

Manufacturer: HG

Item Category: Drain Opener Substance

Easy To Maintain

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Editor's Notes

During our biodegradable drain unblocker research, we found 5 biodegradable drain unblocker products and shortlisted 5 quality products. We collected and analyzed 102,365 customer reviews through our big data system to write the biodegradable drain unblockers list. We found that most customers choose biodegradable drain unblockers with an average price of £6.80.

The biodegradable drain unblockers are available for purchase. We have researched hundreds of brands and picked the top brands of biodegradable drain unblockers, including Mr Muscle, Vamoosh, Buster, HG.

Written by

Kiera Browne

Kiera Browne served as chef and caterer in Purslane Restaurant for three years before establishing her restaurant. Kiera now owns two restaurants and a culinary school all over the United Kingdom. Kiera has featured in magazines and editorials, providing recipes for various dishes. Using her skills and knowledge in the culinary field, Kiera has published few pamphlets on preparing various cuisines.