Best Cloth Diaper Laundry Detergents of 2026

Cloth diapers ask a detergent to do two jobs at once: get newborn blowouts and overnight urine out of fabric, and rinse away clean enough that the diaper still absorbs. A detergent that leaves residue can turn a perfectly good insert into a leaky one, which is why I stopped treating diaper laundry like regular laundry. I focused on fragrance-free, skin-friendly formulas—the kind that won’t leave a scent on a clean diaper or irritate a baby’s bottom—and on whether each one could handle stains without extra soaking.

Over four months, our team washed its way through 14 detergents, from powders to concentrated liquids, using the same diaper-pail loads and the same wash routine. I paid attention to the boring stuff: how much detergent a load actually needed, whether a container felt like it would last, and whether I’d buy it again. A detergent can clean well and still be a bad value if you need a huge scoop every wash, and the picks below are the ones that kept diapers clean, absorbent, and comfortable enough to reach for again.

Our Top Picks

The 8 Best Cloth Diaper Laundry Detergents of 2026

1

Charlie's Soap Laundry Powder Best Overall

Charlie’s Soap Laundry Powder 300 Loads

Full-time cloth diapering

Our Score 97/100
Form
Powder
Loads
300
Fragrance
Free
Cloth Diaper Use
Listed safe
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Charlie's Soap is one of the few detergents here that says outright it is safe for cloth diapers, and that claim is why we keep coming back to it for full-time diapering. The dose is a single tablespoon, which matters more than the bag size: you are not guessing with a cap or a pod, and there is less chance of overdoing it on a small diaper load. We also like that it is free of perfumes, dyes, and artificial brighteners, the things most likely to leave a coating behind.

In our wash routine, the powder dissolved cleanly and rinsed without the slippery feel we associate with too much detergent. That is the quality we care about most for diapers, because residue is what turns a clean-smelling diaper into one that repels water. The formula is also septic-safe and works in hot or cold water, so it fits a normal HE machine without a separate routine.

Set-in stains may still need a pre-treat, which is the one place we found it merely good rather than exceptional. For full-time diapering, though, the combination of an explicit cloth-diaper claim and a one-tablespoon dose is hard to beat.

Worth Noting

  • Large upfront bag takes shelf space
Our Verdict

We recommend Charlie's Soap first for full-time cloth diapering because it names cloth diapers on the package and a single tablespoon covers a load.

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2

Nellie's Laundry Soda Best for Small Spaces

Nellie's Laundry Soda

Small spaces, trial

Our Score 96/100
Form
Powder
Loads
50
Fragrance
Free
Ingredients
Four simple ingredients
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Nellie's comes in a 50-load pouch that looks almost too small for a diaper household, and that is exactly why we like it as a first powder. The formula is four simple ingredients, fragrance-free and dye-free, and it uses one tablespoon per load, so you can try the low-dose approach without buying a year's supply. It is also HE-compatible and septic-safe, which makes it easy to live with.

We found it best for small spaces and for families who wash a few diapers at a time rather than running a full diaper load every day. The pouch takes up less shelf space than a liquid jug, and the one-tablespoon scoop makes it hard to over-pour. It rinses clean and leaves no perfume, which is what we want in a diaper detergent. If you already know you like a simple powder, the small pouch is a smart trial size.

We also appreciate that the ingredient list is short enough to scan without a chemistry lesson. Set-in stains may still need a pre-treat, though that is true of most free-and-clear powders here.

Worth Noting

  • 50 loads runs out fast in full-time diapering
Our Verdict

We like Nellie's as a low-commitment first powder for small spaces, especially if you want to test a one-tablespoon routine before buying a big bag.

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3

Babyganics 3X Baby Laundry Detergent Best Liquid for Baby Stains

Babyganics 3X Baby Laundry Detergent

Liquid for newborns

Our Score 95/100
Form
Liquid
Fragrance
Free
Stain Fighting
Yes
Cloth Diaper Use
Listed safe
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Babyganics is the liquid we reach for when we want a bottle instead of a powder, and it is one of the few liquids here that says outright it is safe for cloth diapers. It is fragrance-free and made without optical brighteners, chlorine, phthalates, sulfates, or dyes. That last part matters: optical brighteners can make a diaper look clean while leaving a coating that repels water, so we were glad to see them left out.

The formula is plant-derived and stain-fighting, and it handled the everyday mess we threw at it without leaving a perfume trail. We did find that set-in stains need a pre-treat or a second wash. That is a real limitation for a diaper detergent, but it is not unusual among free-and-clear liquids.

The 60-ounce bottle is easy to store and easy to pour, and it works in an HE machine. If you are washing baby clothes alongside diapers, this is a sensible one-bottle solution. Just do not expect it to replace a dedicated pre-treater on blowout days.

Worth Noting

  • Costs more per load than budget liquids
Our Verdict

Choose Babyganics if you want a liquid that explicitly says it is safe for cloth diapers and leaves out fragrance and optical brighteners.

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4

all free clear Liquid Detergent Best Liquid for Sensitive Skin

all free clear Liquid Detergent

Sensitive-skin families

Our Score 94/100
Form
Liquid
Loads
110
Fragrance
Free
Certification
EPA Safer Choice
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all free clear is the liquid we keep around for the whole family, not just the diaper pail. It is free of perfumes and dyes, concentrated enough that a small dose goes a long way, and it works in cold water, which is useful when you are trying to keep utility costs down. The 110-load bottle is also one of the easier ones to justify if you want a single detergent for diapers and everyday clothes.

We liked that it rinsed without leaving a heavy residue, and the unscented formula is a good match for sensitive skin. It is EPA Safer Choice certified and contains no phosphates, so it is a reasonable choice if you are trying to keep the wash routine simple. The honesty check is that it is not specifically marketed for cloth diapers, so confirm it is on your diaper maker's approved list before you commit.

If you want one liquid for the whole household and your diaper brand allows it, this is the easiest switch. It is also a good choice for baby clothes and towels, so you are not buying a separate detergent just for diapers.

Worth Noting

  • Bottle can leak in transit
Our Verdict

We reach for all free clear when one sensitive-skin liquid needs to cover diapers and the family's everyday laundry, provided your diaper maker approves it.

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5

ARM & HAMMER Powder Laundry Detergent Best Budget Powder

ARM & HAMMER Powder Laundry Detergent

Budget powder

Our Score 93/100
Form
Powder
Loads
100
Fragrance
Free
Odor Control
Baking soda
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The budget powder we reach for is ARM & HAMMER's free-and-clear box. It is free of perfume and dyes, dermatologist tested, and built around activated baking soda for odors, which is a useful combination when you are washing diapers that have been sitting in a pail. The 100-load box is also one of the lower-cost ways to get through a full-time diapering routine.

We liked it for diaper-pail loads and everyday laundry, and the powder form makes it easy to dose by the scoop. The box is lighter and easier to store than a liquid jug, and it handles odors well, which is the main reason it earns a place here.

If you are already using a free-and-clear powder and want to spend less, this is the one we point to first. If you want the reassurance of a detergent that names cloth diapers on the package, pay the small step up to Charlie's or Nellie's.

Worth Noting

  • No explicit cloth-diaper claim
Our Verdict

This is our budget powder for diaper-pail odors and everyday loads, though it lacks an explicit cloth-diaper claim.

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6

ARM & HAMMER Sensitive Skin Free & Clear

ARM & HAMMER Sensitive Skin Free & Clear

Budget liquid

Our Score 92/100
Form
Liquid
Loads
105
Fragrance
Free
Certification
SkinSAFE
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The SkinSAFE certification is the detail that makes ARM & HAMMER Sensitive Skin stand out from the other budget liquids. It is free of dyes, perfumes, and preservatives, and it is dermatologist tested, so it is a reasonable choice for a household that reacts to scented detergent.

The 105-load bottle is priced like a budget pick, which matters if you are washing diapers every day. It is also HE-compatible and concentrated enough that you do not need a full cap for a normal load.

We liked it for everyday laundry and for sensitive skin, and it cleaned well enough that we did not feel like we were sacrificing performance for the price. It is not specifically marketed for cloth diapers, so check your diaper maker's list before using it on a full diaper load.

If you want a cheap liquid for the whole family and your diapers tolerate it, this is a practical pick. If you want an explicit cloth-diaper claim, Babyganics is the liquid to choose instead.

Worth Noting

  • Bottle can leak in transit
Our Verdict

For a budget liquid, we point to this SkinSAFE-certified formula for sensitive-skin households, though it lacks a cloth-diaper-specific label.

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7

Molly's Suds Original Laundry Powder Best for Large Households

Molly's Suds Original Laundry Detergent Powder

Large households

Our Score 91/100
Form
Powder
Loads
240
Fragrance
Free
Ingredients
Four simple ingredients
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Molly's Suds sells its Original powder in two 79-ounce bags, 240 loads total, and that bulk size is the main reason to consider it. The formula is unscented, made with four simple ingredients, and free of artificial dyes and fragrances. For a large family washing diapers and everyday laundry together, the load count is appealing.

We liked the short ingredient list and the fact that it works in standard and HE machines. The powder is fine and easy to scoop. The bigger caveat is stain removal: it handled everyday soil, but set-in stains were hit-or-miss, so we keep a pre-treater nearby. That is a real trade-off for diaper laundry, where blowouts are part of the job.

If your priority is a simple, unscented powder that will cover a lot of loads, this is a solid value. If you want the strongest stain performance in this group, Charlie's is the better bet.

Worth Noting

  • Two-bag package needs storage space
Our Verdict

Molly's Suds is the large-family powder we choose when simple ingredients and 240 loads matter more than spotless stain removal.

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8

ECOS Laundry Detergent Free & Clear Best for Plant-Based Shoppers

ECOS Laundry Detergent Free & Clear

Plant-based shoppers

Our Score 90/100
Form
Liquid
Loads
100
Fragrance
Free
Certification
EPA Safer Choice
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ECOS is the plant-powered liquid in this group, and it is a good fit if the ingredient list matters as much as the wash. It is free-and-clear, pH-balanced, and EPA Safer Choice certified, with no parabens or phosphates.

The two-bottle pack delivers 100 loads, which is a sensible size for a family that wants one detergent for diapers and everyday laundry. The formula is also vegan and made in the USA, details that matter if you are trying to keep the whole laundry shelf consistent.

We liked it for regular laundry and for sensitive skin, and it rinsed without a strong perfume trail. It is not our first pick for tough diaper stains: it struggled with set-in messes in a way that had us pre-treating or running a second wash.

If you want a greener liquid and your diapers are not heavily stained, ECOS is a reasonable choice. If you are dealing with blowouts and want a formula that names cloth diapers on the package, go with Babyganics or a powder instead.

Worth Noting

  • Bottles can leak in transit
Our Verdict

ECOS is the plant-based liquid we suggest for lighter soil and everyday laundry, not as the first line of defense against diaper blowouts.

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How We Tested Cloth Diaper Detergents

I started by researching the free-and-clear detergents that cloth-diaper families mention most often, then we narrowed the list to formulas that were HE-compatible, concentrated, and free of added fragrance and dyes. We also weighed container size and cost per load so the final group included both powders and liquids that could realistically become someone’s regular buy. That left 14 detergents, and we ran each through the same four-month routine: a cold prewash, a hot main wash, and an extra rinse, with diaper loads every other day.

The test loads were real diaper laundry—newborn blowouts, toddler overnight diapers, and the sour smell of a pail that sat a day too long. After each wash, I checked covers and inserts for visible stains before drying, smelled the clean diapers once they came out, and poured water onto inserts to see whether it soaked in or beaded up. I also tracked whether diapers started repelling water or leaking after repeated washes, since detergent residue can quietly undo absorbency.

For scent, I noted whether a detergent left any fragrance on clean diapers and whether pail odors came back within a few hours. For skin, I kept a log of redness or irritation around the waist and legs and asked whether the wash felt gentle enough for daily use. For value, I measured the recommended scoop or cap, tracked how many loads each container actually delivered, and noted how soon I’d need to repurchase—because a detergent that needs a giant scoop every wash is not a bargain, even if the upfront size looks generous.

How to Choose a Cloth Diaper Laundry Detergent

Start With a Free-and-Clear Formula

For cloth diapers, we look for a detergent that is free of dyes, perfumes, and optical brighteners, and we avoid anything labeled with fabric softener. Those extras can coat fibers and cut absorbency, which is the opposite of what a diaper needs. A simple laundry soap or free-and-clear powder is the safest default, and Charlie's Soap and Babyganics are the two picks here that state cloth-diaper use outright. If your diaper maker publishes an approved list, check it before switching.

Choose Powder or Liquid for Your Wash Routine

Powder is our default for diapers because it is concentrated, easy to measure by the tablespoon, and rinses clean in hot or cold water. It also stores without a bulky jug. Liquid is more convenient if you prefer a bottle and a cap, and Babyganics and all free clear are the strongest liquid options here. The trade-off is that liquids can carry more additives, so read the label and avoid anything with fragrance or optical brighteners.

Dose for Your Water and Add an Extra Rinse

More detergent is not better. Concentrated powders like Charlie's and Nellie's use about a tablespoon per load, and doubling that can leave residue that makes diapers repel water. Start with the recommended dose, use the hottest water your diapers allow, and add an extra rinse if you see suds or feel stiffness. In hard water, check your diaper maker's guidance before simply adding more detergent; a water softener may be the better fix.

Compare Cost per Load, Not Just the Sticker

A big bag can look expensive next to a small bottle, but the number that matters is cost per load. Charlie's 300-load bag and Molly's 240-load package are built for full-time diapering, while Nellie's 50-load pouch is a lower-commitment way to try a powder. We compare the load count and the dose, not just the shelf price, because a concentrated powder that uses one tablespoon can outlast a liquid that asks for a full cap.

Frequently Asked Questions

Final Verdict

Charlie's Soap Laundry Powder is the one we recommend first for cloth diapers: it is explicitly listed as safe, it uses a tablespoon per load, and the 300-load bag makes it a sensible long-term buy.

If you want a smaller pouch to try, Nellie's is the better first step; if you prefer liquid, Babyganics is the one with an explicit cloth-diaper claim. For a budget liquid that works on the whole family's laundry, all free clear is the easier switch.