Laundry detergent for septic systems is essential for maintaining the health of your septic system while ensuring your clothes come out clean and fresh. In 2025, the best options on the market are formulated to be eco-friendly and free from harsh chemicals that can disrupt the delicate balance of bacteria in your septic tank. These detergents effectively remove stains and odors while being gentle on your plumbing, making them a smart choice for households relying on septic systems. Choosing the right product can help prolong the life of your septic system and reduce the risk of costly repairs.
Seventh Generation Concentrated Laundry Detergent Liquid Free & Clear Fragrance Free 40 oz
- Seventh Generation Free & Clear Concentrated Laundry Detergent Fragrance-Free has a powerful triple-enzyme formula fights tough stains
- Free & Clear hypoallergenic laundry detergent made for sensitive skin
- A laundry detergent that is EPA Safer Choice Certified and designed with safety in mind
- Concentrated detergent washes 53 medium loads in high-efficiency (HE detergent) or standard machine
- USDA Certified 96 percent Biobased laundry detergent liquid made with plant-based ingredients
$14.99
ECOS Laundry Detergent Liquid, 200 Loads - Dermatologist Tested Laundry Soap - Hypoallergenic, EPA Safer Choice Certified, Plant-Powered - Magnolia Lily, 100 Fl Oz (Pack of 2)
- CLIMATE POSITIVE AND SUSTAINABLE - Not only is this laundry detergent formula effective and kind to sensitive skin, but it's also pH-balanced.
- 100% VEGAN – Containing enough detergent for 200 loads of laundry, plant-powered ECOS Laundry Detergent is both cruelty-free and vegan, making it an ideal choice for planet-conscious households.
- PARABEN AND PHOSPHATE FREE - Unlike most conventional laundry detergents, ECOS does not contain any harsh chemicals or ingredients that can pollute water when it enters the ecosystem.
- DERMATOLOGIST-TESTED AND HYPOALLERGENIC - ECOS Laundry Detergent is an effective yet gentle cleaning solution for clothes that is suitable for families with skin allergies and sensitivities.
- CLEAN FORMULAS WITH VISIBLE RESULTS - Since 1967, ECOS has created safer, powerful products by using enzymes found in nature. Our liquid laundry detergents are made in a carbon and water neutral, TRUE Platinum Zero Waste factory using 100% renewable energy.
$37.14
Oasis Biocompatible Laundry Detergent Liquid - Reuse Greywater for Plants - Clean, Safe, Concentrated & Effective, Grey Water Friendly, Sodium-Free, Biodegrades Into Plant Nutrients - HE 128 Loads
- THE ORIGINAL GREY WATER FRIENDLY LAUNDRY DETERGENT: Oasis is biocompatible… that means it breaks down into healthy nutrients that are good for fruit trees, gardening, and landscapes. Other biodegradable laundry detergent brands contain toxins that can kill plants. Since 1990, Oasis laundry soap has been used in greywater systems with water that can be reused safely for watering plants, and nourishing edible & sustainable landscapes.
- DESIGNED FOR GREYWATER SYSTEMS: Unlike other laundry supplies brands, water that contains Oasis laundry detergent liquid can be reused for greywater irrigation in systems like Laundry To Landscape (L2L). One gallon of Oasis liquid laundry detergent yields more than 3,200 gallons of washwater you can irrigate with. No sodium, no chlorine, no boron, no phosphates, and Oasis does not significantly affect soil pH. Oasis septic safe laundry detergent is also the best choice for septic tank disposal.
- EFFECTIVE & SUPER CONCENTRATED: A small amount of Oasis sustainable laundry detergent cleans laundry effectivley. Oasis harsh chemical free laundry detergent is formulated to be super concentrated so just 1/8th of a cup can clean a load of laundry. This means you get more washes out of a single bottle, a cost-effective choice for your laundry needs. This high concentration laundry soap liquid ensures that your clothes come out fresh.
- SAFE FOR PLANTS & YOUR FAMILY: Oasis washing soap for laundry prioritizes environmental and user safety. The cruelty free laundry detergent ensures that it's not only safe for cleaning clothes, but also safe for your family, pets, and the planet. Oasis laundry liquid detergent is for those seeking effective yet gentle cleaning products. This liquid laundry soap is truly the only choice for reusing wash water for irrigating plants.
- LIVE OFF THE GRID OR EMBRACE VAN LIFE - This concentrated laundry detergent can help you achieve a more sustainable lifestyle, whether at home or while enjoying the van life! Use it as a hand wash laundry detergent if on the open road or add it to your essential off grid living supplies list. Unlike other laundry products, Oasis is formulated for greywater and septic systems. Safe for disposal or reuse, you won't release toxins into the environment.
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Seventh Generation Laundry Detergent Packs, Lavender, Biobased Deep Clean, EPA Safer Choice Certified, 64 Count
- Made with triple bio-enzymes and mineral power to fight odors and stubborn stains like chocolate, dirt, and grass.
- A safer choice for your family. Our packs are the number 1 EPA Safer Choice Certified Laundry Detergent Packs. Based on 2022/2023 category brand sales on IRI and Spins for US EPA Safer Choice Certified Laundry Detergent Packs
- USDA Certified Biobased Product 94%
- Refreshing lavender scent made from 100% essential oils and botanical ingredients, 0% dyes or artificial fragrances.
- Fights stains and cleans clothes effectively in hot and cold water.
$19.99
Nellie's Laundry Soda - Concentrated Laundry Detergent Powder - 50 Loads - Gentle on Skin and Environment - Fragrance-Free - (Made in Canada)
- Efficient Cleaning Power - Nellie's Laundry Soda embodies the pinnacle of cleaning efficacy. With its highly concentrated formula comprising just four premium ingredients, it dissolves rapidly in both cold and hot water. Witness as it banishes dirt and stubborn stains while preserving the integrity of your garments. Discover exceptional cleanliness that goes above and beyond.
- Eco-Conscious Solution - Nellie's invites you to join the eco-friendly laundry movement. In contrast to traditional liquid detergents, which contain excessive water, our powdered formula maximizes cleaning potency while minimizing packaging waste. Reduce your ecological footprint and play a crucial role in supporting a sustainable future.
- Gentle on Skin, Tough on Stains - Prioritize your family's health with Nellie's Laundry Soda. Designed to be gentle on your skin while fiercely combatting resilient stains, it leaves your laundry feeling soft, fresh, and devoid of any residue. Nellie's signifies a commitment to your well-being and the environment.
- Back to Basic Ingrdients - Nellie's Laundry Soda was made from the ground up to ensure that your laundry experience remains free from undesirable substances. It steers clear of SLS, SLES, gluten, phosphates, chlorine, fragrance, optical brighteners, and solid synthetics. Trust in the choice of clean and eco-friendly laundry care.
- Leaping Bunny Certified - Nellie's Laundry Soda stands proudly as a cruelty-free solution, bearing the esteemed Leaping Bunny certification. Make a responsible choice that aligns with your values, championing both pristine laundry and the well-being of our furry companions.
$14.99
SALE
−$2.58
Charlie’s Soap Laundry Powder New (150 Loads, 1 Pack) Fragrance Free Hypoallergenic Plant Based Deep Cleaning Laundry Powder – Biodegradable Eco Friendly Sustainable Laundry Detergent
- ECO-FRIENDLY CLEANING POWER: New Convenient 150 load size concentrated powdered laundry soap works on all your laundry, from high-tech fabrics to delicates, washing away smells, stains, and left-behind residue from previous detergents.
- HYPOALLERGENIC: Washing soda and powerful, natural ingredients work together to deep clean, rinse from fabrics completely, and leave nothing on your clothes. The fragrance-free formula is ideal for those with sensitive skin and will not cover stains or odors with artificial brighteners or perfumes. Our powder laundry detergent is safe for hand washing.
- CLOTH DIAPER FRIENDLY: This detergent is safe to use on baby fabrics, effectively deep cleaning cloth diapers and other baby clothes between wears perfect along with your other baby essentials.
- LESS IS MORE: Each bag contains just four ingredients and one tablespoon per dose. No suds, just a deep clean that leaves fabric fresh and soft and your washing machine cleaner by removing old laundry detergents left deep in your machine.
- EPA SAFER CHOICE CERTIFIED: Charlie’s Soap laundry soap and our other sustainable products are certified safer for the environment and is septic safe. The eco-friendly formula helps remove fats, oils, greases, and odors from sewer lines, saving your town money and water making it the perfect laundry solution.
$27.41
SALE
−$3.00
Laundry Detergent Powder, 92 Load/55oz. 'Free & Clear' Powder Laundry Detergent for Sensitive Skin. ProvenSafe™ Laundry Stripper Washing Detergent w/Odor & Stain Remover for Activewear & All Fabrics
- 𝗪𝗮𝘀𝗵 𝘁𝗵𝗲 𝗙𝘂𝗻𝗸 𝗢𝘂𝘁!' 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲: Defunkify's laundy detergent enzymes clean deep within fabric fibers to eliminate the residue, oils, sweat & heavy cover-up scents left behind by other washing detergents. As a scent free laundry detergent w/ all natural old odor eliminator & set-in stain remover ingredients, 𝘆𝗼𝘂𝗿 𝗰𝗹𝗼𝘁𝗵𝗶𝗻𝗴 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗹𝗼𝗼𝗸𝗶𝗻𝗴 & 𝗳𝗲𝗲𝗹𝗶𝗻𝗴 𝗹𝗶𝗸𝗲 𝗻𝗲𝘄 𝗶𝗻 𝗮 𝘀𝗶𝗻𝗴𝗹𝗲 𝘄𝗮𝘀𝗵, 𝗴𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱. Learn more at Defunkify.
- 𝗘𝗳𝗳𝗼𝗿𝘁𝗹𝗲𝘀𝘀𝗹𝘆 '𝗙𝗿𝗲𝗲 & 𝗖𝗹𝗲𝗮𝗿' 𝗟𝗮𝘂𝗻𝗱𝗿𝘆 𝗗𝗲𝘁𝗲𝗿𝗴𝗲𝗻𝘁: Using only powerful biobased non-toxic ingredients, Defunkify's pure 'Free & Clear' unscented powder detergent for laundry is free of synthetic fragrances, dyes, phosphates, chlorine, brighteners, & more. Defunkify's 'ProvenSafe' washing detergent formula is 𝗶𝗱𝗲𝗮𝗹 𝗳𝗼𝗿 𝘁𝗵𝗼𝘀𝗲 𝘄/ 𝘀𝗲𝗻𝘀𝗶𝘁𝗶𝘃𝗲 𝘀𝗸𝗶𝗻, 𝗸𝗶𝗱𝘀, 𝗽𝗲𝘁𝘀 & 𝗲𝘅𝗽𝗲𝗻𝘀𝗶𝘃𝗲 𝗴𝗲𝗮𝗿. Safe for HE washers & septic tanks.
- 𝗣𝗼𝘄𝗲𝗿𝗳𝘂𝗹 𝗟𝗮𝘂𝗻𝗱𝗿𝘆 𝗦𝗼𝗮𝗽: Inside one small scoop of powder detergent for laundry is an industry leading stain remover, odor remover / eliminator & laundry stripper in one! While powerful, Defunkify's laundry detergent powder remains safe for sensitive skin, all fabrics & clothing types (including activewear & outdoor gear), & is environmentally friendly & eco-conscious w/ our patented ProvenSafe process & formula. 𝗣𝗹𝗮𝘆 𝗛𝗮𝗿𝗱, 𝗖𝗹𝗲𝗮𝗻 𝗘𝗮𝘀𝘆 𝘄/ 𝗗𝗲𝗳𝘂𝗻𝗸𝗶𝗳𝘆
- 𝗧𝗵𝗲 𝗣𝗿𝗼𝘃𝗲𝗻𝗦𝗮𝗳𝗲 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: Defunkify's ProvenSafe formula for laundry detergent starts w/ safer & green ingredients mixed specifically to maximize performance & clean deep. Then we test heavily for efficacy & toxicity, ensuring your family remains safe. Lastly, we provide 100% ingredient transparency. 𝗦𝗶𝗺𝗽𝗹𝘆 𝗽𝘂𝘁, 𝗗𝗲𝗳𝘂𝗻𝗸𝗶𝗳𝘆 𝗼𝗳𝗳𝗲𝗿𝘀 𝘁𝗵𝗲 𝘀𝗮𝗳𝗲𝘀𝘁 & 𝗺𝗼𝘀𝘁 𝗽𝗼𝘁𝗲𝗻𝘁 𝗹𝗮𝘂𝗻𝗱𝗿𝘆 𝗱𝗲𝘁𝗲𝗿𝗴𝗲𝗻𝘁 𝗼𝗻 𝘁𝗵𝗲 𝗺𝗮𝗿𝗸𝗲𝘁. Try today!
- 𝗧𝗮𝗰𝗸𝗹𝗶𝗻𝗴 𝘁𝗵𝗲 𝗢𝗰𝗲𝗮𝗻 𝗣𝗹𝗮𝘀𝘁𝗶𝗰 𝗣𝗿𝗼𝗯𝗹𝗲𝗺 𝘄/ 𝗗𝗲𝗳𝘂𝗻𝗸𝗶𝗳𝘆: As an emerging CPG company that cares, Defunkify donates $0.40 for every pound of plastic used to various non-profits to advance ocean conservation & plastic removal initiatives. We encourage our customers & the broader community to also take part by recycling, getting involved & supporting ocean-friendly products. 𝗟𝗲𝗮𝗿𝗻 𝗺𝗼𝗿𝗲 𝗮𝘁 𝗗𝗲𝗳𝘂𝗻𝗸𝗶𝗳𝘆.
$25.99
SALE
−$4.07
Amazon Basics Laundry Detergent Pacs, Lavender Scent, 120 Count (New Packaging)
- LAVENDER SCENT: Experience a bright, lavender scent with each wash using these laundry detergent pods, allowing your clothes to smell as clean as they look after each laundry session
- CONVENIENTLY PRE-MEASURED: Each laundry pod is pre-measured for easy use, allowing you to skip the hassle of measuring detergent for each load, providing efficiency in each wash
- VERSATILE PERFORMANCE: These laundry detergent pacs dissolve in any water temperature, making them effective in both cold and hot water to maintain laundry versatility
- COMPATIBLE WITH ALL MACHINES: Designed for both standard and high efficiency (HE) machines, these laundry detergent pods offer flexibility no matter your appliance type, providing a thorough clean
- ECO-CONSCIOUS FORMULA: Contains no phosphates and is safe for septic systems, providing a cleaning solution that's gentle on the environment, making it an ideal choice for washing machine pods
$21.78
Cleancult Laundry Detergent Sheets - Resealable Box - 3 Stain Fighting Enzymes - Wild Lavender - 60 Loads - Free of Harsh Chemicals - No Mess - No Plastic Waste
- ALL-POWERFUL CLEAN: Our ultra concentrated liquidless laundry detergent sheets are the only laundry sheets containing 3 stain-fighting enzymes to deliver a uniquely powerful clean. Each pre-measured laundry detergent sheet gives the same effective clean as our liquid laundry detergent and is compatible with all machines and water temperatures.
- TRIPLE ACTION FORMULA: Our sensitive-skin safe detergent sheets battle on three fronts: fighting stubborn stains, removing odors, and softening clothes. Just one quick dissolving sheet transforms your laundry, delivering crisp, clean clothes every time. Their compact design makes them the perfect travel laundry detergent.
- EARTH FRIENDLY PACKAGING: Reduce the use of single use plastic bottles with our plastic jug free packaging and 100% recyclable paper box. Our convenient liquid detergent alternative is mighty not messy- no spills and no drips as our laundry detergent is filled with active ingredients and not watered down. These laundry detergent sheets are lightweight, have a smaller carbon footprint than traditional laundry detergent, and are certified plastic neutral.
- A CLEANER KIND OF CULT: Choose our liquidless laundry detergent sheets for a cleaner approach to laundry. Our formula freshens clothes and is free of 1,4-dioxane, phosphorus, parabens, phosphates, phthalates, dyes, and SLS. Never bear witness to stubborn stains and odors again.
- SMELLS LIKE CLEAN SPIRIT: Elevate your laundry routine with our fresh linen scented laundry detergent sheets. Turn a simple routine into a luxurious ritual, celebrating each load as a job well done.
$13.98
SALE
−$1.00
ARM & HAMMER Sensitive Skin Liquid Laundry Detergent, Fresh Scent, 105 fl oz, 105 Loads
- One 105 fl oz bottle of ARM & HAMMER Sensitive Skin Laundry Detergent, Fresh Scent Liquid Laundry Detergent that cleans 105 medium loads when used as directed
- Dermatologist-tested laundry detergent that's gentle on skin but tough on stains and odors, making it an ideal soap for sensitive skin
- Dye-free detergent with a hypoallergenic fresh scent that has been tested by dermatologists and has passed four different clinical tests, so you can use this detergent worry-free
- With trusted ARM & HAMMER Baking Soda, this HE laundry detergent is formulated to deeply clean clothes while being gentle on skin
- HE laundry detergent is concentrated with 2X powerful stain fighters in every load versus leading value detergent, making it an effective and efficient laundry detergent
$8.98
Last update on 2025-05-01 / Affiliate links / Images from Amazon Product Advertising API