What’s in Your Detergent? The Best Non-Toxic Laundry Brands

You wash your clothes to remove dirt, sweat, and odor, but what if the very product you’re using to clean them is exposing you to toxic chemicals?

Most people never stop to think about what’s in their laundry detergent. The crisp scent of “fresh linen” or “mountain air” might seem harmless, even comforting. But behind that smell could be a cocktail of unregulated chemicals, some of which have been linked to cancer, hormone disruption, and environmental damage. One of the most concerning is 1,4-dioxane, a substance officially classified as a potential human carcinogen.

If you’ve been wondering whether your detergent is actually safe, this guide will help you understand the risks, know what ingredients to avoid, and find clean, non-toxic alternatives that don’t compromise on effectiveness.

The Hidden Dangers of Conventional Laundry Detergents

Modern detergents are designed for performance like removing stains, keeping whites bright, and leaving a lasting scent. But to do that, they rely on a mix of chemicals that can linger on clothes, be absorbed through your skin, and pollute the air and waterways.

Some of the health and environmental concerns tied to conventional detergents include:

• Skin irritation and allergic reactions
• Respiratory problems from inhaling VOCs (volatile organic compounds)
• Hormone disruption from certain synthetic chemicals
• Long-term toxicity from persistent pollutants

Let’s take a closer look at the most notorious culprit: 1,4-dioxane.

1,4-Dioxane: The Cancer-Linked Chemical in Your Laundry

1,4-dioxane is not something you’ll see listed on detergent labels. It’s a byproduct of a process called ethoxylation, which is used to make harsh ingredients more gentle. In doing so, it unintentionally creates this contaminant.

According to the U.S. Environmental Protection Agency (EPA), 1,4-dioxane is “likely to be carcinogenic to humans” (1). It has also been detected in drinking water across North America, thanks in part to wastewater from homes and industrial facilities.

The U.S. federal regulation systems consider dioxane so potent, that it is equivalent, if not more dangerous of a threat to humans than most pesticides used on crops. Detergents contaminated with 1,4-dioxane also have traces of other contaminates like formaldehyde, nitrosamines, and phthalates.

This chemical never breaks down, either. Not even water filters can remove it (and it isn’t biodegradable). To avoid 1,4-dioxane, the Organic Consumers Association (OCA) recommends avoiding products with indications of ethoxylation. If there are any of the suffixes in the ingredient list that contain any of the following, please avoid buying it (2):

• Myreth, oleth, laureate, ceteareth, and any other “eth”
• PEG
• Polyethylene, polyethylene glycol, or polyoxyethylene
• Oxynol
• Sodium laureth/laurel sulfate

The concern isn’t just theoretical. Studies have linked 1,4-dioxane exposure to:

• Liver and kidney damage
• Tumor formation in lab animals
• Groundwater contamination

Despite being known for years, it’s still found in many mainstream detergents like Tide, Arm & Hammer, and Gain.

Other Toxic Ingredients Lurking in Your Detergent

1,4-dioxane isn’t the only problem. Here are other common detergent ingredients to avoid:

1. Fragrance (a.k.a. “Parfum”)

That fresh scent? It could include dozens of synthetic chemicals, including phthalates, which are known endocrine disruptors. Because fragrance is considered a trade secret, companies aren’t required to disclose the actual components. In general, about 3,000 ingredients could be picked from to create a product’s scent.

According to research by the University of Washington, when scented laundry detergents, fabric softeners, and dryer sheets are used, dryer vents emit more than 25 volatile organic compounds (VOCs) per load – many of which are classified as hazardous air pollutants (3). So the laundry chemicals used in conventional laundry detergent can impact the air quality in your home, your health, and even the outdoor air around your house.

Fragrance is problematic, because over 95 percent of the chemicals used to create them are derived from petroleum (crude oil) (4). These chemicals include things like carcinogenic benzene derivatives, toluene, aldehydes, and many other toxic chemicals that have been linked to cancer, birth defects, allergic reactions and central nervous system damage (5).

Why it matters: Fragrance ingredients can cause allergic reactions, skin irritation, and respiratory issues.

2. Bleach (Sodium Hypochlorite)

Often found in whiteners and brighteners, bleach is highly corrosive and can form toxic compounds when mixed with other chemicals.

A study published in Occupational & Environmental Medicine found that just “passive exposure” to bleach in the home is associated with a greater risk of respiratory illness and other infections in children (6).

Risks include: Lung irritation, skin burns, and environmental harm when rinsed into waterways.

3. SLS, SLES, and ALS (Sodium Lauryl/Laureth/Ammonium Lauryl Sulfates)

These surfactants help detergent foam and remove grease. But they can be irritating and are sometimes contaminated with 1,4-dioxane. They give people that satisfactory sudsing confirmation that their clothes are, in fact, getting cleaned. While this is largely a myth (you don’t need a product to “suds” in order for it to be clean), most people still buy into it.

Thousands, upon thousands of research studies on SLS have linked it to irritation of the skin and eyes, organ toxicity, developmental/reproductive toxicity, neurotoxicity, endocrine disruption, ecotoxicology, and biochemical or cellular chances, and cancer (7).

Linked to: Skin and eye irritation, possible contamination with carcinogenic byproducts.

4. Phosphates

Used to soften water and boost cleaning power, phosphates have been largely phased out of laundry detergents in North America but may still appear in certain imported or older products.

Why it matters: They contribute to water pollution by fueling algal blooms that kill aquatic life.

5. Optical Brighteners

These chemicals coat clothing to reflect light and make them appear whiter. They don’t actually clean but can remain on fabric and irritate sensitive skin.

6. Petroleum Distillates & NPEs (Nonylphenol Ethoxylates)

Derived from crude oil, these compounds are often used as solvents and emulsifiers.

Concerns include: Toxicity to aquatic life, hormone disruption, and poor biodegradability.

Health Risks of Long-Term Exposure to Laundry Chemicals

Repeated exposure to these compounds, whether through skin contact, inhalation, or residue on clothing and bedding, may impact your health more than you realize.

Common side effects include:

• Skin conditions like eczema and dermatitis
• Respiratory issues such as asthma and chronic irritation
• Hormonal imbalances and potential fertility problems
• Increased risk of cancer from long-term exposure to carcinogens like 1,4-dioxane

For children, whose bodies are more sensitive, and for pets, who often lie directly on laundered fabrics, the risks are even greater.

Why “Free & Clear” and “Green” Labels Aren’t Always Safe

Don’t be fooled by marketing. Many brands labeled “free & clear” or “eco-friendly” still contain synthetic ingredients, harsh preservatives, or undisclosed fragrance blends.

Greenwashing Red Flags:

• Vague terms like “natural” or “plant-based” with no third-party certification
• Lack of full ingredient disclosure
• Use of essential oils that are processed with chemical solvents

To truly know if a product is safe, look for EWG ratings, certifications (like USDA BioPreferred, EPA Safer Choice, or MADE SAFE), and transparency from the brand.

A Cleaner Option: Make Your Own Laundry Soap

If you’re into DIY, you can skip the guesswork entirely and make your own natural detergent at home.

Simple DIY Laundry Soap Recipe:

• 1 cup washing soda
• 1 cup baking soda
• 1/2 cup grated castile soap (like Dr. Bronner’s)
• 10 drops essential oil (lavender, lemon, or tea tree for natural scent)

Mix all ingredients and store in a sealed jar. Use 1-2 tablespoons per load.

Pros:

• Total control over ingredients
• Budget-friendly
• No plastic packaging

The Best Non-Toxic Laundry Detergent Brands (Ranked)

Looking for a safer switch that actually works? Here are my top non-toxic laundry detergent picks — free from carcinogens, endocrine disruptors, and irritating chemicals.

1. Zum Clean Laundry Soap

• Why it’s great: Scented only with essential oils. No parabens, petrochemicals, or phthalates.
• Bonus: Comes in a recyclable jug. Biodegradable.
• Best for: People who love a fresh smell but want clean ingredients.

2. Emma Eco Me Natural Detergent

• Why it’s great: Minimal ingredients, no fragrance, and super gentle on sensitive skin.
• Certifications: EWG Verified
• Best for: Babies, eczema-prone skin, and scent-free households.

3. Clean People Laundry Detergent Sheets

• Why it’s great: One of the most affordable safe options. No dyes, fragrances, or phosphates.
• Certifications: EPA Safer Choice
• Best for: Budget-conscious households seeking clean performance.

4. Soap Nuts

• Why it’s great: 100% natural. These dried berries contain saponin, a natural soap.
• How to use: Toss 4-5 nuts in a cloth bag and into your washer. Reuse up to 5 times.
• Best for: Zero-waste, travel, or extreme sensitivities.

5. Molly’s Suds

• Why it’s great: Created by a pediatric nurse. No dyes, fragrances, SLS, or optical brighteners.
• Best for: Stubborn stains and cloth diapers.

6. Attitude Laundry Detergent

• Why it’s great: Canadian brand with EWG-verified options and eco certifications.
• Best for: Families and those wanting safer formulas with a light natural scent.

7. Branch Basics Laundry Booster + Concentrate

• Why it’s great: Multi-purpose concentrate with no preservatives, fragrances, or harmful chemicals.
• Certifications: MADE SAFE Certified
• Best for: Minimalist routines and people with chemical sensitivities.

8. Biokleen Laundry Liquid

• Why it’s great: Plant-based ingredients with no artificial fragrances or phosphates. Highly concentrated.
• Certifications: EPA Safer Choice
• Best for: Eco-conscious households who want performance and value.

The Bottom Line

The products we use every day might seem small, but over time, they shape our health, our homes, and the environment. Laundry detergent is one of those silent daily exposures we rarely think twice about, yet it has the potential to introduce endocrine disruptors, carcinogens, and allergens directly into our skin, lungs, and waterways.

The good news? You have options. Brands are listening. Cleaner, safer products are more accessible than ever. Whether you’re ready to go full DIY or just want to switch to a brand that scores well with the EWG, every choice you make has impact.

Your laundry can be both clean and safe. Let this be the last time you settle for anything less.