Top 15 Drain Cleaning Solutions

Top Pick

Experts unanimously recommend Drano Max Gel as the top drain cleaner for its ability to swiftly tackle tough clogs. This dependable and efficient product is a thick gel that penetrates deep into sinks, pipes, and drains to target and dissolve clogs at their source. Whether the blockage is caused by hair, soap scum, grease, or other residues, this cleaner works within 15 to 30 minutes after being flushed with hot water. Although it may require a second application for complete success, its strength ensures it will be your go-to solution for unclogging drains.

This product is suitable for use in showers, sinks, tubs, septic systems, garbage disposals, PVC pipes, and metal pipes—however, it is not safe for toilets. Similar to most drain cleaners, Drano Max Gel contains chemical components that can be harmful if ingested or if they come into contact with the skin or eyes. Additionally, we value that Drano Max Gel is affordably priced and includes a money-back guarantee. If it fails to clear your drain, you can submit a claim online for a refund.

Type: Gel | Size: 80 ounces

Top Eco-Friendly Option

Finding drain cleaners made with natural or organic ingredients is no easy task, but Earthworm’s Drain Cleaner and Buildup Remover stood out as the clear winner for the best natural option. This liquid cleaner uses natural enzymes instead of harsh chemicals, effectively breaking down buildup and dissolving moderate clogs without harming your pipes. It’s perfect for tackling hair, soap scum, toothpaste, and other organic materials, though it might need multiple applications for complete results.

One of the standout features of this product is its refreshing citrus and sage scent, which leaves sinks and garbage disposals smelling clean. Additionally, it comes in 32-, 64-, or 128-ounce bottles, making it easy to choose the right size for storage under your sink.

This cleaner is an excellent option for those seeking a safe, natural solution for unclogging drains, especially in homes with young children or pets. We also appreciate that it’s produced by a women- and family-owned business.

Type: Liquid | Size: 32, 64, and 128 ounces

Top Choice for Hair Clogs

Hair is the primary culprit behind blocked drains, particularly in showers. For tackling these stubborn clogs, Liquid-Plumr Hair Eliminator Gel is the top choice. The brand claims this thick gel cleaner can dissolve tough hair clogs in just 15 minutes after rinsing with hot water. While extreme temperatures may cause the gel to clump in the bottle, its performance remains unaffected, and it’s safe for septic systems and all pipe types, including PVC, plastic, and copper. However, it’s not designed for use in garbage disposals or toilets.

This hair-clog drain cleaner is significantly more potent than the brand’s original formula. Experts praise its ability to clear clogs in a single application, outperforming others that often require multiple attempts or bottles. Due to its small 16-ounce size, severe or multiple clogs may necessitate purchasing additional bottles. However, given its affordable price, this powerful hair-clog remover is a worthwhile investment.

Type: Gel | Size: 16 ounces

Top Choice for Sinks

Clogged kitchen or bathroom sinks often lead to stagnant water and foul odors, which attract bothersome flies and harmful bacteria. Rockwell's InVade Bio Drain Gel is the top solution for effectively removing these blockages and pests from nearly any sink. Made with beneficial microbes and natural citrus oil, and free from harsh chemicals or fumes, this dense gel cleaner excels at eradicating odors, buildup, grease, food remnants, and the infamous "sugar snake"—a slimy accumulation of sugar and debris in the drain that fosters bacterial growth. Additionally, this cleaner is highly effective at eliminating and deterring fruit flies, gnats, and other insects that thrive in the damp conditions of a clogged sink.

Although this drain cleaner comes with a higher price tag, following the label's instructions—using four ounces daily for a week—means the gallon-sized bottle provides up to 32 uses. Its natural ingredients ensure it's safe for various applications, including soda fountain drip trays, garbage disposals, and mop buckets.

Type: Gel | Size: 128 ounces

Best for Toilets

Many drain cleaners aren't safe for toilets due to the risk of toxic gas formation when bleach residues mix with ammonia, a common ingredient in such products. Moreover, their abrasive nature can harm pipes. However, Green Gobbler Ultimate Main Line Drain Opener stands out with its non-chemical, non-corrosive, and odorless formula, making it perfect for toilet clogs. It effectively dissolves toilet paper, baby wipes, and other debris, and is versatile enough for sinks, garbage disposals, bathtubs, septic systems, and all pipe types.

Johnson favors Green Gobbler for its eco-friendly, non-toxic components, including natural bacteria that produce enzymes to digest clogs. This enzymatic action ensures safety for toilet use, unlike harsh chemical cleaners. Despite its higher cost compared to other options, its effectiveness, versatility, and safety justify the investment, particularly for toilet drain issues.

Type: Liquid | Size: 64 ounces

Best for Grease

While it's common knowledge that grease should never be poured down the kitchen sink to avoid clogs and pipe damage, accidents happen. When grease inevitably finds its way into the drain, Pequa's Heavy Duty Drain Opener is the most reliable solution. This liquid cleaner swiftly removes organic buildup, including grease, hair, and soap scum, and is safe for almost all types of pipes, whether in homes or businesses.

This rapid-action cleaner is exceptionally effective for maintaining clean kitchen drains, but it also works wonders on shower and bathroom sink blockages. Although manufactured in the U.S., it remains a lesser-known product due to its limited availability in major retail stores.

Type: Liquid | Size: 64 ounces

Best Enzymatic

Enzymes, which are natural bacteria, help break down residue. Bio-Clean stands out as our top enzymatic drain cleaner due to its powerful yet biodegradable formula. The organic waste in drains, such as hair, soap scum, and paper, serves as food for the bacteria in this cleaner. These bacteria consume and digest the clog, effectively clearing the drain. Since the formula targets only organic matter, it won’t harm pipes or inorganic materials. Additionally, its eco-friendly ingredients ensure no harmful fumes are released.

This drain cleaner comes in a natural powder form, so it may require multiple applications or a few days to fully unclog a drain. However, with regular monthly maintenance, slow drains will become a thing of the past. Safe for use in bathrooms, kitchens, grease traps, septic systems, garbage disposals, and even kitty litter pans, this product is versatile. Although it’s more expensive, each canister provides up to 100 chemical-free treatments, making it a cost-effective choice in the long run.

Type: Powder | Size: 32 ounces

Best Crystal

While most of our recommendations are liquids or gels, crystal-based formulas are the most potent chemical drain cleaners. Insta-Flo's Odorless Drain Cleaner stands out as a non-acidic crystal cleaner capable of unclogging drains in just 60 seconds, as claimed by the brand. It’s ideal for tackling severe blockages in slow-draining sinks and tubs. Johnson notes, "Hot or boiling water is essential to activate its effectiveness, as the heat helps dissolve the crystals and clear debris."

Insta-Flo Odorless Drain Cleaner effectively removes various clogs but is not recommended for toilets or garbage disposals. Despite its crystal form, it is safe for use on porcelain, chrome trim, polished brass, plastic, and metal pipes.

Type: Crystal | Size: 16 ounces

Best for Prevention

Preventative drain cleaners are one of the best ways to avoid future clogs. Though regular maintenance might not seem thrilling, it can save time, money, and frustration down the line. That’s why CLR Clear Pipes and Drains Monthly Build-Up Remover is our top pick. This non-toxic, chemical-free product contains natural bacteria that target clogs at their source. It’s also an EPA Safer Choice product, meaning it meets rigorous standards for ingredients, performance, and packaging.

To prevent blockages, the manufacturer recommends using this cleaner monthly, ideally overnight or during periods of low water usage, on bathroom drains, kitchen sinks, and garbage disposals. It effectively clears a variety of debris, including toothpaste, hair, food particles, and oil. While it may take time and multiple applications to achieve optimal results, it remains the top choice for maintaining clear drains and preventing future clogs.

Type: Liquid | Size: 42 ounces

Best Foaming

Foaming drain cleaners are designed to coat the inside of pipes, removing buildup from previous cleanings. The Drano Dual-Force Foamer combines a classic formula with a foaming action, making it safe for all types of pipes, garbage disposals, and septic systems. This versatility makes it suitable for nearly any drain. Once applied, the liquid transforms into a fast-acting foam that eliminates grime and odors within an hour. While ideal for light to moderate clogs, it’s a reliable foaming solution for most household drains.

Type: Liquid | Size: 17 ounces

Best for Kitchen Sinks

Dealing with kitchen sink clogs can be frustrating, especially when grease and food debris create stubborn blockages. Drano Kitchen Granules are our top recommendation, as their solid beads effectively cut through kitchen grime. To use, pour three tablespoons of granules into the drain, let them sit for 15 minutes, and then rinse with two cups of hot water followed by two cups of cold water. The granules dissolve the toughest clogs, leaving your kitchen sink clear and flowing smoothly.

We also appreciate that the formula is safe for PVC, metal pipes, garbage disposals, and septic systems. Note that multiple applications may be needed for persistent clogs, but for regular weekly maintenance, one tablespoon is sufficient to prevent blockages.

Type: Solid granules | Size: 8 ounces

Best for Disposals

Since garbage disposals are out of sight, it’s easy to miss when clogs or buildup start to form. For consistent maintenance, we recommend Glisten Garbage Disposer Cleaner. The powder comes in paper packets that you place directly into the disposal. Once activated, blue foaming bubbles rise into the sink, leaving behind a fresh lemon scent that’s clean and non-chemical.

Depending on your disposal’s blade strength, you may need to remove any remaining packet pieces manually. Despite this, the cleaner is highly effective at refreshing your disposal and keeping the sink, drain, and pipes clean.

Type: Foaming powder | Size: 4.9 ounces

Best for Odors

Unpleasant odors are inevitable when drains become clogged. For a solution that clears blockages and eliminates strong smells, BioWonder Septic Tank Treatment is the top choice due to its versatile formula. This powder contains natural, enzymatic bacteria designed to break down odor-causing residue in pipes and drains. Simply mix the formula with one cup of warm water using the included scoop and pour it into the drain, septic tank, or toilet.

While stubborn clogs may require weekly or biweekly applications, the 31-ounce container offers long-lasting use, despite its higher cost. This cleaner is fragrance-free, effectively neutralizing odors without masking them with artificial scents.

Type: Powder | Size: 31.9 ounces

Best Snake

Clearing drain clogs, particularly those caused by hair, can be a messy chore, but the FlexiSnake Drain Weasel Sink Snake makes it easier. With its 18-inch length and 360-degree rotation, it effectively removes blockages without harming your pipes.

Unlike traditional drain snakes, this tool features a Velcro-tipped wand that captures debris as it rotates. The disposable tips eliminate the need for cleaning, as you can simply discard them after use. While refills are necessary, the tool’s efficiency and clean design make it a worthwhile investment.

Type: Plastic snake | Size: 18 inches

Best Stick

Though not as widely known as other drain cleaners, drain sticks like Sani 360° Sticks are excellent for odor removal and preventive maintenance. These compact yet powerful sticks use enzyme-based cleaning to clear pipes and leave drains smelling fresh. Available in 10 scents, including an unscented option, they are safe for all drains, plumbing, and septic systems, containing no harsh chemicals. While slower-acting than other cleaners, they are ideal for minor clogs and adding a pleasant fragrance (we recommend the lime honey scent).

Type: Sticks | Size: 24 count

Final Verdict

The Drano Max Gel is our top choice for its versatile formula that works on all drain types. For a natural alternative, the Bio-Clean Drain Septic Bacteria offers effective cleaning at a budget-friendly price.

How to Shop for Drain Cleaners Like a Pro

Type

Drain cleaners generally fall into two categories: natural (enzymatic) and chemical (caustic or acidic). They are available in various forms, such as liquid, gel, foam, powder, or crystals. Chemical cleaners are highly effective but contain harsh ingredients like sodium hydroxide and hydrochloric acid, which can damage pipes if overused or misapplied. Kunz explains, "Enzyme-based cleaners are ideal for organic clogs, such as those caused by hair, soap scum, and food debris." However, enzymatic cleaners tend to work more slowly than chemical options.

When choosing a drain cleaner, consider the nature of the clog, the urgency of the situation, and the material and age of your pipes. For instance, older lead pipes may only tolerate natural cleaners.

Use

While most drain cleaners share the same purpose, some are tailored for specific uses, such as clearing toilet blockages or kitchen sinks clogged with grease. Your choice should align with the type of clog and intended use. For preventive maintenance, a cleaner designed for hair clogs may not be ideal. Conversely, if you need to quickly remove a hair clog to use your shower, a slow-acting enzymatic cleaner could add to your frustration. Kunz also emphasizes that chemical cleaners, while effective, can damage pipes over time and should be used sparingly.

Time

Natural, enzymatic cleaners are slower but safer, while chemical cleaners work faster but contain harsh ingredients. Consider whether speed is a priority when selecting a product. For example, Insta-Flo Odorless Drain Cleaner starts working in just 60 seconds, whereas others may take hours or days. If repeated attempts fail, Brosnan suggests using tools like a drain snake or plunger.

Questions You Might Ask

How do drain cleaners work?

“Drain cleaners typically rely on chemical agents like sodium hydroxide or sulfuric acid to dissolve or break down clogs and debris in pipes, converting them into liquid or gas that can be washed away with water,” Kunz explains. Natural cleaners use enzymes to digest and dissolve clogs, while chemical cleaners generate heat through reactions to break down blockages. To determine if your cleaner is working, check for standing water after application and always flush with hot or boiling water.

Do drain cleaners damage pipes?

Plastic and older pipes are especially prone to damage, so it’s crucial to know your pipe material before using chemical cleaners. Enzymatic cleaners, on the other hand, are safe for inorganic materials like pipes.

"If the chemicals in the drain cleaner are too harsh for the pipe material, they can cause damage," says Johnson. "The product label usually specifies where the cleaner should be used."

Overusing drain cleaners can lead to pipe damage. A telltale sign is if the cleaner doesn’t flush out completely after use.

Do drain cleaners expire?

Like most cleaning products, drain cleaners don’t technically expire but lose potency over time. Johnson notes that they typically remain effective for about two years.

What type of drain cleaners do plumbers recommend?

Kunz explains that many plumbers prefer enzyme-based drain cleaners as a safer alternative to chemical options.

“Enzyme cleaners use natural enzymes to dissolve organic materials like hair and soap scum without harsh chemicals,” he says. “They are safer for pipes and septic systems while effectively preventing clogs and maintaining proper drainage.”

Take Our Word for It

This article was authored by L. Daniela Alvarez, a contributing writer for Mytour with nearly three years of experience in lifestyle and product review content. To curate this list, she conducted extensive research on drain cleaners, evaluating them based on their formula, recommended use, value, and other factors. She also gathered expert advice from Alicia Johnson, cleaning specialist and owner of Green & Clean Co.; Ray Brosnan, cleaning expert and co-founder of Brosnan Property Solutions; and Matt Kunz, president of Mr. Rooter Plumbing.