10 Best Laundry Detergent For Hard Waters Reviewed as of April 2024

Reviews Scanned

Rockin' Green Hard Rock Laundry Detergent for Hard Water (90 Loads), Plant based, Natural Laundry Detergent Powder, Biodegradable Odor Fighter, Safe for Sensitive Skin, 45 oz (Unscented)

Formulated For Hard Water - Hard Rock Rockin Green laundry detergent fights tough stains and banishes odors while maintaining fabric quality. This natural laundry detergent works best in hard water with high mineral content, preventing residues and mineral deposits without the need for water softeners!
Safe for Sensitive Skin - Our non toxic laundry detergent is dermatologist-tested and hypoallergenic, making it safe for sensitive skin, those with fragrance sensitivities, and babies. This chemical free laundry detergent provides a gentle and enzyme-free cleanse for clothes.
Suitable for All Washing Machines - Our 45oz organic laundry detergent doubles as a pre-soak and cleans approximately 90 loads! Just add one scoop for regular cycles or an extra scoop for deep cleaning. Works well as an active wear unscented detergent, linen detergent, and cloth diaper detergent.
Cleaner Clothes, Greener Planet - Choose our natural detergent laundry powder and contribute to a cleaner world. Free from harmful chemicals, like bleach, dyes, parabens, phosphates, and SLS/SLES, all Rockin Green cleaning products are vegan and cruelty-free.
Rock the Green Lifestyle - We're on a mission to create economical, hardworking, and biodegradable cleaning products that meet every family's demands. Join the Rockin’ Green movement and enjoy safe and reliable products! If unsatisfied, contact our customer support; we'll respond within 48 hours.

Charlie's Soap Booster & Hard Water Treatment 160 Loads (2.64 Lbs, 1 Pack) Natural Powdered Water Softener and Laundry Booster – Safe and Effective

Economical - Environmentally safe phosphate designed to soften water and leave no hard water scale, and at 160 average loads per bag, that is 0.17 cents per load and cheaper than the competition.
Boosts cleaning power of laundry detergent: Our laundry softener aids in the removal of tough stains and dirt from clothes and works to boost the cleaning power of your laundry detergent
Effective odor and stain removal: Booster formulated to aid in the removal of problem minerals from your water such as calcium, helping rid odors and stains from clothes, leaving them fresh and clean.
Safe for the environment: Add to your laundry supplies for a water treatment and laundry booster that and is an eco-friendly product for home use, making it safe for the environment
Septic Safe - When used in moderation, formula is safe in septic and municipal water systems. Non-precipitating and will not form scale

Calgon Liquid Water Softener, 32 Oz (Pack of 2)

Get clothes cleaner, whiter, and brighter vs detergent alone
Removes limescale and mineral build-up
Two Pack of 32 Fl Oz bottles

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Calgon 4-in-1 Water Softener Tablets, Washing Machine Cleaner & Limescale Remover, Removes Odours, Limescale and Residue, Deep Clean, Size: XL (Packaging may vary), 75 Count (Pack of 1)

Calgon prevents limescale & rust build-up in your washing machine to protect the heating element, pipes and drum of the machine
Washing machine cleaner and limescale remover, removes odours, limescale & residue
Protects and cleans your washing machine by helping to prevent the build-up of limescale
Allows you to use only the amount of detergent required for soft water
Helps your washing machine work better for longer, whilst removing bad odours

Charlie's Soap - Laundry Booster and Hard Water Treatment 2.64 lbs (3 Pack)

SIMPLE INGREDIENT - Environmentally safe phosphate designed to soften water and leave no hard water scale
RINSES CLEAN - Rinses completely from fabric, leaving behind no residue on your clothes that can irritate sensitive skin
HARD WATER TREATMENT - Removes problem minerals from your water such as calcium that keep detergents from working
NON-TOXIC - Water softener for hard water and well water that aids in natural biodegradation in the environment
SEPTIC SAFE - When used in moderation, formula is safe in septic and municipal water systems. Non-precipitating and will not form scale

Charlie's Soap Booster & Hard Water Treatment (2.64 Lbs, 2 Pack) Natural Powdered Water Softener and Laundry Booster – Safe and Effective

Economical - Environmentally safe phosphate designed to soften water and leave no hard water scale, and at 160 average loads per bag, that is 0.17 cents per load and cheaper than the competition.
Boosts cleaning power of laundry detergent: Our laundry softener aids in the removal of tough stains and dirt from clothes and works to boost the cleaning power of your laundry detergent.
Effective odor and stain removal: Booster formulated to aid in the removal of problem minerals from your water such as calcium, helping rid odors and stains from clothes, leaving them fresh and clean.
Safe for the environment: Add to your laundry supplies for a water treatment and laundry booster that and is an eco-friendly product for home use, making it safe for the environment
SEPTIC SAFE - When used in moderation, formula is safe in septic and municipal water systems. Non-precipitating and will not form scale.

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ARM & HAMMER Super Washing Soda Household Cleaner and Laundry Booster, Versatile Natural Home Cleaner, Powder Laundry Additive and Cleaner, 55 oz Box

One 55 oz box of ARM & HAMMER Super Washing Soda Household Cleaner and Laundry Booster
100% fragrance-free and phosphate-free washing soda neutralizes and eliminates odors naturally without the use of heavy fragrances, leaving a long-lasting fresh and neutral clean scent
As a laundry additive, it improves liquid laundry detergent performance by up to 15% (1), giving you cleaner, whiter and brighter laundry and upholstery (1) For mustard and blood stains vs leading value detergent alone
Great general purpose cleaner for a wide variety of indoor and outdoor hard surfaces like sinks, stainless steel, bathtubs, garage floors and more, a must-have addition to your household cleaning supplies
Use as a silver polish to remove tarnish from silver, gold, brass or copper to keep your jewelry, silverware and precious items looking their best

MRS. MEYER'S CLEAN DAY Liquid Laundry Detergent, Biodegradable Formula Infused with Essential Oils, Rain Water, 64 oz - Pack of 2 (128 Loads)

Concentrated detergent formula is effective yet gentle on clothes
Contains plant-derived cleaning agents with dirt, stain-fighting enzymes, and other thoughtfully chosen ingredients
64 loads of laundry per Bottle
Biodegradable formula, HE laundry detergent for use in high efficiency and conventional washing machines
Rain Water scented laundry detergent has a fragrance so clean. Drops of Rain Water fall on leaves and noses and fill the air

Bubble Bandit BIG BOOST Hard Water Washing Soda for Laundry Booster Powder Brightener with Natural Phosphates. 125 Loads in a 7.8 lb pail

[AMPLIFIED PERFORMANCE:] Bubble Bandit BIG BOOST washing soda enhances No-Phosphate detergents, and makes cleaner, softer, and brighter clothes.
[STAIN-FIGHTING POWER:] Conquer tough stains effortlessly, whitening whites and brightening colors for laundry that looks impeccable.
[EMPOWERED BY NATURAL PHOSPHATES:] Infused with natural phosphates, the secret behind our trusted dishwasher detergent, softening clothes and leaving a fresh scent.
[VERSATILE & UNSCENTED:] Suitable for all machines, including HE models, with compatibility across various water conditions. Ideal for use with "No-Phosphate" liquid, pod, and powdered detergents.
[LONG-LASTING CONVENIENCE:] A 7.8 lb pail laundry booster provides brightening power for up to 125 regular loads. Effortless packaging, a reusable pail, and an easy-to-measure scoop for added convenience.

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Harris Borax Powder Laundry Booster and Multipurpose Cleaner, 1.5lb (Unscented)

Ultra Laundry Booster - Borax neutralizes the negative effects of hard water and allows your detergent to clean your clothing as it was intended
Multipurpose - Use for cleaning projects around the house on glass, countertops, dishwashers, carpet, toilets, grout/tile, and much more
Resealable Bag - Zipper allows the bag to be easily resealed for ongoing use and to preserve freshness
Scoop Included - Easy measure scoop makes adding a consistent amount to loads of laundry a breeze
Unscented - No fragrances or additives of any kind, just 100% pure 5mol borax

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