The Best Non-Toxic Dish Soap in 2026

Last updated September 2026. Detox Database may earn a commission from links on this page. It never affects our ratings.

Dish soap is easy to overlook. You rinse it off, so how much can it matter?

But it touches your hands multiple times a day, it coats every plate and glass you eat from, and whatever residue stays behind ends up in your food.

There's also a specific reason to pay attention to this category: when a state-funded lab tested hundreds of household products for a likely carcinogen, dish soap came back worse than every other category tested.

Below are the non-toxic dish soaps worth buying, the ingredients to avoid, and why "plant-based" on the label isn't enough.

The Main Dish Soap Problem

1,4-Dioxane is a likely human carcinogen according to the EPA.

It's never listed on a label, because it isn't added on purpose. It forms as a byproduct when manufacturers make certain surfactants through a process called ethoxylation.

Here's why it matters more for dish soap than anything else in your house: the New York State Pollution Prevention Institute, based at Rochester Institute of Technology and funded by the state's Department of Environmental Conservation, tested 313 household and personal care products for the compound in collaboration with California's Department of Toxic Substances Control.

Dish soap had the highest mean level of any category tested, at 2.5 parts per million, with 69% of products exceeding the state's upcoming standard.

For comparison, body cleansers came in at 62%, shampoo at 59%, and laundry detergent at 53%. Dishwasher detergent and toilet cleaners had no detections at all.

A separate review found similar numbers, reporting that 69% of dish soaps contained 1,4-dioxane above 1 ppm.

The good news: regulation is working

New York passed the first state law in the country limiting 1,4-dioxane in consumer products.

Household cleansing and personal care products were capped at 2 ppm as of December 31, 2022, and 1 ppm as of December 31, 2023, with cosmetics capped at 10 ppm.

New York finalized the implementing regulations in 2024, becoming the first state to do so.

Because most manufacturers reformulate nationally rather than making state-specific products, levels have come down broadly.

One caveat worth knowing: the law includes a waiver process, so some products can be sold above the limits with approval.

How to spot the risk on a label: ethoxylated ingredients are the source. Look for "laureth" (as in sodium laureth sulfate), any ingredient ending in "-eth," and "PEG."

Notably, sodium lauryl sulfate (SLS) is not ethoxylated, so it doesn't carry the same 1,4-dioxane concern, though it can still be drying to skin.

Other Dish Soap Ingredients to Avoid

Synthetic fragrance

"Fragrance" can stand for dozens of undisclosed chemicals, and it's one of the most common causes of hand dermatitis. Since your hands are in this product daily, fragrance-free is the easy win.

Sulfates (SLS and SLES)

Effective grease-cutters, but harsh on skin that spends a lot of time in water, stripping the natural barrier with every wash. SLES carries the added 1,4-dioxane concern; SLS does not.

Preservatives (MIT and CMIT)

Methylisothiazolinone and methylchloroisothiazolinone are well-documented contact allergens, and they show up in plenty of liquid dish soaps. Powders and bars generally don't need preservatives at all.

Phosphates

Largely an environmental issue rather than a health one: phosphates feed algae blooms that deplete oxygen in rivers and lakes.

Dyes

There's no functional reason for your dish soap to be blue or green.

"Antibacterial" claims

Ordinary soap and water physically removes germs from dishes. Antibacterial additives don't improve dishwashing and add exposure for no benefit.

Is Dawn Dish Soap Toxic?

Dawn is the most-searched brand in this category, so it's worth answering directly.

Dawn isn't dangerous in the acute sense, and it's genuinely effective at cutting grease. But it doesn't meet a non-toxic standard: Dawn products receive C and D ratings from EWG, largely due to fragrance and ingredient disclosure.

Dawn also sells a Free & Clear version without dyes and fragrance, which is a meaningful improvement over the original if you're not ready to switch brands.

Certifications Worth Looking For

• EWG Verified: The strictest mark. Full ingredient disclosure including fragrance, and nothing on EWG's unacceptable list.

• MADE SAFE: Screens against carcinogens, endocrine disruptors, reproductive toxins, and heavy metals.

• EPA Safer Choice: A federal review of every ingredient. A good baseline and easy to find in stores.

• EWG Guide to Healthy Cleaning grades: Free to look up. An A or B grade is a solid filter when a product has no formal certification.

"Plant-based," "natural," and "non-toxic" on a label mean nothing on their own. Plenty of plant-derived surfactants are still ethoxylated.

How We Rate Dish Soaps

Every dish soap in the Detox Database is scored on full ingredient disclosure, surfactant type (ethoxylated or not), absence of fragrance, dyes, and harsh preservatives, third-party certifications, grease-cutting performance, and packaging.

The Best Non-Toxic Dish Soaps

1. ATTITUDE Dish Soap - Best Overall

ATTITUDE is EWG Verified, made with 97% naturally derived ingredients, and available in both fragrance-free and essential-oil-scented versions.

It's phosphate-free and paraben-free, and the whole ATTITUDE cleaning line carries the same verification, which makes it easy to switch multiple products at once.

• Pros: EWG Verified, fragrance-free option, widely available, good grease performance

• Cons: Plastic bottle; costs more per ounce than conventional brands

• Best for: Most households, especially anyone with sensitive hands

2. Blueland Dish Powder - Best Plastic-Free

Blueland's waterless dish powder has the strongest certification stack in the category: EWG Verified, MADE SAFE, EPA Safer Choice, B Corp, and Cradle to Cradle certified for both product and packaging.

It's free of petroleum derivatives, dyes, artificial fragrances, parabens, and phthalates, and it's vegan.

The format takes some adjustment. You get a silicone shaker bottle on your first purchase and refill it indefinitely with powder packets.

One honest note: the paper refill packets are compostable only in an industrial facility, not a backyard bin.

• Pros: Best-in-class certifications, eliminates plastic bottles, refillable forever

• Cons: Higher upfront cost; powder takes getting used to; refill packets need industrial composting

• Best for: Anyone cutting plastic out of the kitchen

3. Seventh Generation Free & Clear - Best Budget Pick

The easiest safer swap to find in a regular grocery store.

It's free of fragrances and dyes, dermatologist tested, and carries both EPA Safer Choice and USDA Certified Biobased labels, in a 100% recycled bottle with FSC-certified refill options.

• Pros: Affordable, available everywhere, fragrance-free, recycled packaging

• Cons: Safer Choice is a lower bar than EWG Verified or MADE SAFE

• Best for: First-time switchers on a budget

4. Dr. Bronner's Sal Suds - Best Grease-Cutter

Worth clearing up a common mix-up: Sal Suds is not castile soap.

It's a mild synthetic detergent, and for dishes that's an advantage. Castile soap is a true soap, so it reacts with the minerals in hard water and leaves a film behind.

Detergents don't react with minerals, which is why Dr. Bronner's own guidance recommends Sal Suds for shiny surfaces like dishes, especially in hard water, and notes it's slightly more effective on grease.

It's also highly concentrated (roughly twice the strength of their castile soap) and works for laundry, floors, and general cleaning, so one bottle goes a long way.

• Pros: Excellent on grease, works in hard water, extremely concentrated, fully disclosed formula

• Cons: Only one scent (spruce and fir essential oils); too drying for use as hand soap

• Best for: Hard water, greasy pans, and people who want one product for many jobs

If you prefer castile: Dr. Bronner's Pure-Castile soap does wash dishes well, especially with soft water. If you're seeing a greasy film on your dishes, that's the hard water reaction, and switching to Sal Suds solves it.

5. Branch Basics Concentrate - Best Multi-Use

Branch Basics' EWG Verified concentrate dilutes into several cleaning solutions, including dish soap.

It's fragrance-free, dye-free, phosphate-free, and free of every ingredient on EWG's unacceptable list, and one bottle covers hundreds of wash cycles.

• Pros: EWG Verified, replaces multiple products, extremely economical per use

• Cons: High upfront price; requires mixing

• Best for: Households already using Branch Basics for other cleaning

6. Meliora Dish Soap - Best for Sensitive Skin

Meliora's dish soap uses organic plant-based ingredients, is MADE SAFE certified, and comes in an unscented version.

Meliora is one of the most transparent brands in cleaning, listing every ingredient right on the label.

• Pros: MADE SAFE certified, unscented option, full disclosure, plastic-free

• Cons: Bar format takes adjustment; soap-based formulas can leave film in very hard water

• Best for: Eczema-prone hands and fragrance sensitivity

7. No Tox Life Dish Block - Longest Lasting

A solid dish bar that replaces up to three bottles of liquid soap and lasts three to five months with regular use, fragrance-free.

It's the most economical zero-waste option here.

• Pros: Very long lasting, no plastic at all, fragrance-free, travel-friendly

• Cons: Needs a draining soap dish; less sudsy than liquid

• Best for: Low-waste kitchens and small budgets over time

8. Puracy Natural Dish Soap - Best All-Around Liquid

A concentrated plant-derived formula free of synthetic fragrance, SLS, and petroleum-based ingredients, with full ingredient disclosure and strong grease-cutting performance.

• Pros: Strong performance, clean ingredients, widely available

• Cons: Scented versions use essential oils, which very sensitive skin may react to; plastic bottle

• Best for: People who want conventional-feeling liquid soap with a cleaner formula

Tips for Washing Dishes With Non-Toxic Soap

• Use hot water. Natural formulas rely more on water temperature to cut grease than conventional detergents do.

• Use less than you think. Most non-toxic soaps are concentrated, and too much means extra rinsing.

• Let greasy pans soak. Five minutes of soaking does more than extra soap.

• Rinse thoroughly, especially with bars and castile-based products.

• Keep bars on a draining dish so they don't dissolve into mush.

• Hard water? Choose a detergent-based option like Sal Suds or a powder, rather than a true soap.

Don't Forget the Rest of Your Sink

• Sponges are worth a second look. Most are made from polyurethane foam and shed microplastics. Cellulose, loofah, or wooden brushes are easy swaps.

• Dishwasher detergent is a separate product with different concerns, though notably it had no 1,4-dioxane detections in the state testing.

• Hand soap sits next to the sink and gets used just as often.

Frequently Asked Questions

• What is the safest dish soap?
  Dish soaps carrying EWG Verified or MADE SAFE certification are the safest, since both require full ingredient disclosure. ATTITUDE (liquid) and Blueland (powder) are our top picks.

• Is Dawn dish soap safe?
  Dawn cleans well but earns C and D ratings from EWG, mainly for fragrance and disclosure. The Free & Clear version is a step up, though it still doesn't match certified non-toxic brands.

• What is 1,4-dioxane and why is it in dish soap?
  It's a likely carcinogen that forms as a byproduct when certain surfactants are manufactured. Dish soap tested highest of all household product categories in state-funded lab testing. New York's limits have pushed levels down nationwide.

• Does non-toxic dish soap actually cut grease?
  Yes. Detergent-based options like Sal Suds and concentrated formulas like Puracy handle grease well. True soaps (castile, soap bars) work fine too, but can leave film in hard water.

• Is castile soap good for dishes?
  It cleans well, but because it's a true soap it reacts with minerals in hard water and leaves a film. If you have hard water, use a detergent-based cleaner instead.

• Is dish soap residue on dishes a problem?
  It's the main reason ingredients matter here, since whatever stays on a plate ends up in your food. Rinsing thoroughly with hot water handles most of it, and a fragrance-free formula means less residue worth worrying about.

• Can I use dish soap on baby bottles?
  Yes, and it's a good reason to choose a fragrance-free, certified formula. Rinse thoroughly.

The Bottom Line

For most people, ATTITUDE Dish Soap is the best non-toxic pick: EWG Verified, fragrance-free, and easy to find.

If you want to cut plastic entirely, Blueland's powder has the strongest certifications in the category.

On a budget, Seventh Generation Free & Clear is a real improvement over conventional soap, and if you have hard water or greasy pans, Sal Suds outperforms everything else here.