Best eco-friendly drain and clog cleaners 2025

Green Gobbler has an extensive range of drain and pipe-cleaning products that offer a more eco-friendly solution than other bleach-based drain cleaners. This drain clog dissolver uses a bleach-free formula that is biodegradable, odorless and safe to use for PVC, ABS, copper, and cast iron household pipes.

This dissolver is approved for use safely on pipes, toilets, and septic systems. You pour the liquid into your clogged drain, and it will sink through any standing water, breaking down things like hair, toilet paper, and personal care wipes, and dissolving them until the blockage is cleared.

Available in two different sizes, this two-pack 62-fluid-ounce version retails for approximately $24.00. It contains two pre-measured applications in each bottle, giving you up to four uses (less if you have a stubborn blockage that requires a double dose). Its biodegradable formula is non-corrosive to your plumbing, and its ingredients are designed to break down harmlessly in the environment.

Containing 128 fluid ounces of drain cleaner liquid for $19.00, Instant Power’s Eco Clog Preventer is one of the more cost-effective eco-friendly drain cleaners. It uses a natural enzyme-based formula that breaks down unwanted clogs, leaving behind a protective layer that keeps working once the treatment has been completed. 

This product is free of harsh chemicals that can cause damage to your pipes and is suitable for bathroom and sink drains and garbage disposals. It’s safe to use in septic systems and leaves a pleasant lemon citrus scent. Plus, its packaging is 100% recyclable.

Instant Power recommends an application of 4 ounces per use, giving you multiple uses from the one bottle, though stubborn clogs might require a bigger dosage. It’s a solid value option for tackling all your household drains if you’re concerned about the damage chemical-based products might cause.

Earthworm drain cleaner uses an environmentally responsible, enzyme-based formula that prevents the build-up of organic material in your household drains. This is a preventative treatment designed to eliminate clogs before they build up and is suitable for use in all household drains.

This product is free of harsh chemicals, making it a safer option to have around the house if you have children or pets. It was rated as the best natural drain cleaner by RealSimple.com and is effective against moderate clogs and obstructions. Once used, it dispenses a citrus and sage fragrance to keep your drains smelling nice and fresh.

It is available in a 32 fluid-ounce pack for $12.00 or a larger 64 fluid-ounce pack for $27.00, and the recommended use is two to three times a week. However, unless you’re planning to burn through drain cleaner, you might want to be a bit more economical with your application.

Formulated to meet U.S. eco-certification Terra Care standards, XionLab Safer Drain Opener is an industrial-strength liquid drain cleaner that is non-corrosive and safe to use on all pipes. Odorless, biodegradable, and non-flammable, it can be used on any type of household drain.

XionLab Drain Opener dissolves fats, oils, hair, lint, and grease harmlessly, leaving no residue. This bottle contains 32 fluid ounces of drain cleaner and retails for approximately $22.00.

Unfortunately, the recommended application is 16 ounces, so you won’t get more than a couple of uses per bottle. That said, it is specifically designed for use on more stubborn clogs, rather than regular, preventative use. It won’t harm your septic system and is particularly effective against hair clogs.

Using a powerful bio-enzymatic formula, Bioda’s professional strength drain cleaner can be used on everything from household drains, garbage disposals and sewers, to boat and RV holding tanks. It uses enzymes and probiotics rather than harsh chemicals to break down clogs, making it much kinder on your pipes or septic system.

This bottle contains one gallon of drain cleaner and retails for $27.00. Bioda recommends using one-quarter to one-half cup of cleaning solution per week to maintain the flow of your drains, so you can expect a reasonable number of applications from a single purchase.

It’s effective at breaking down hair, grease, fat, soap scum, and more. However, it is best used as a preventative measure rather than attacking established, tougher clogs. It is bleach- and acid-free, and suitable for indoor and outdoor use.