A bottle of laundry detergent looks simple.
Fresh scent.
Bright packaging.
A picture of clean clothes.
Maybe words like:
“Fresh.”
“Clean.”
“Odor defense.”
“Long-lasting scent.”
“Deep clean.”
“Gentle.”
“Plant-based.”
“Free & clear.”
But turn the package around and things become much more complicated.
Laundry detergent isn't simply soap.
Modern detergents can be complex chemical systems containing surfactants, builders, enzymes, polymers, fragrances, preservatives, optical brighteners, dyes, chelating agents, solvents, processing aids, and other ingredients designed to change how a product cleans, pours, smells, looks, or interacts with fabric.
Some of those ingredients perform essential cleaning functions.
Others are there primarily for sensory or formulation purposes.
And some—particularly synthetic polymers used in fragrance-delivery technologies—have become part of a much larger environmental debate around intentionally added microplastics.
That debate has moved beyond social media.
In 2023, the European Union adopted a sweeping restriction on intentionally added synthetic polymer microparticles.
The regulation specifically addresses detergents and creates separate timelines for synthetic polymer microparticles used to encapsulate fragrances.
Read the European Union's official microplastics regulation here.
That's important.
Because if microplastics in household products were simply an internet myth, European regulators would not be creating phase-out timelines for their use in detergents and fragrance encapsulation.
So what's actually inside conventional laundry detergent?
And what should consumers be paying attention to?
The answer requires separating three things that are often confused:
Ingredients that clean.
Ingredients that support the formula.
And ingredients that may be there because consumers have been trained to associate fragrance, brightness, and sensory effects with cleanliness.
That difference tells us a lot about the modern laundry industry.
Laundry Detergent Is a Chemical System, Not “Soap”
The first thing to understand is that laundry detergent and traditional soap are not the same thing.
Traditional soap is generally based on salts of fatty acids.
Modern laundry detergent usually uses synthetic or manufactured surfactants alongside many supporting ingredients.
That isn't automatically bad.
Cleaning is chemistry.
The important question is whether each ingredient has a useful function—and whether that function is worth the environmental or exposure trade-offs associated with it.
A detergent may contain ingredients designed to:
- remove grease
- loosen soil
- soften hard water
- break down stains
- keep soil suspended
- brighten fabric
- preserve a liquid formula
- increase viscosity
- add color
- create fragrance
- make fragrance last longer
- control foam
- stabilize enzymes
Those are very different purposes.
A surfactant that helps remove oil has a clear cleaning role.
A polymer capsule designed to release perfume when you rub your shirt days after washing has a very different role.
This is where ingredient transparency starts to matter.
Surfactants: The Ingredients Doing Much of the Actual Cleaning
Surfactants are fundamental to laundry detergent.
Water alone has difficulty removing greasy soils because oil and water don't mix easily.
Surfactants help bridge that gap.
Their molecular structure allows them to interact with both water and hydrophobic soils, helping loosen oils and disperse them into the wash solution.
The U.S. Environmental Protection Agency evaluates surfactants used in safer cleaning products based on characteristics including biodegradation and aquatic toxicity.
Read the EPA's Safer Choice criteria for surfactants.
Examples of surfactants found across the laundry industry can include:
- linear alkylbenzene sulfonates
- alcohol ethoxylates
- alcohol ethoxysulfates
- alkyl sulfates
- soaps and fatty-acid salts
- other anionic and nonionic surfactants
These ingredients do real cleaning work.
So simply seeing a long chemical name does not mean you've found a “toxic” ingredient.
This is where many clean-living conversations become misleading.
Chemical name does not equal dangerous.
And “natural” does not automatically equal safe.
The better question is:
Why is this ingredient here, and what does it do?
Builders: The Ingredients Most Consumers Never Hear About
Surfactants don't work alone.
The chemistry of the wash water matters too.
Hard water contains elevated levels of minerals such as calcium and magnesium.
Those minerals can interfere with detergent performance.
That's why detergents commonly use builders and water-conditioning ingredients.
Builders can help:
- manage hard-water minerals
- maintain alkalinity
- improve surfactant efficiency
- prevent soil redeposition
Examples can include:
- sodium carbonate
- sodium citrate
- sodium bicarbonate
- zeolites
- various chelating agents
These ingredients aren't there to make laundry smell better.
They help the cleaning system work.
This distinction becomes important when comparing a transparent detergent formula with a heavily fragranced conventional product.
Not every “chemical” should be treated equally.
Some ingredients solve genuine cleaning problems.
Enzymes: Targeted Stain Removal
Enzymes are another example of sophisticated but useful laundry chemistry.
Different enzyme families can help target specific stain molecules.
Proteases can attack proteins.
Amylases can break down starches.
Lipases can interact with fats.
Other enzymes can contribute to fabric care and soil release.
Modern detergent enzymes can help improve cleaning efficiency without simply relying on harsher wash conditions.
That matters because effective stain removal is more nuanced than throwing more surfactant into the formula.
When an enzyme is included for stain removal, it has a clear function.
This is an example of chemistry being used intentionally.
Then We Get to Fragrance
This is where laundry gets much more interesting.
Fragrance isn't required to make clothing clean.
It changes how clothing smells.
Those two outcomes have become psychologically linked after decades of detergent marketing, but chemically they are different.
A T-shirt can be clean and smell like almost nothing.
A T-shirt can also smell strongly of perfume while still containing residual soils.
Yet some laundry products compete heavily on one characteristic:
How long the fragrance remains on your clothes.
Hours.
Days.
Weeks.
Brands advertise phrases like:
“Long-lasting freshness.”
“Freshness that lasts.”
“Activated by movement.”
“Fresh scent for days.”
How do you make perfume survive washing, rinsing, drying, folding, and wearing?
One answer is microencapsulation.
The Fragrance Microcapsule Problem
Fragrance microcapsules are tiny structures designed to surround a fragrance.
The outer shell protects the fragrance during washing and drying.
Later, mechanical friction can rupture the capsule and release additional scent.
Rub a towel.
Move inside a shirt.
Fold fabric.
More fragrance can be released.
From a product-performance perspective, it is clever engineering.
From an environmental perspective, it raises a much bigger question.
What is the capsule shell made from?
A major 2024 scientific review in the journal ACS Applied Materials & Interfaces explains that polymeric materials have been extensively used as shells for microcapsules across industries—including detergents and fragrance products.
The researchers specifically discuss synthetic microcapsules used in laundry products and the growing push to replace persistent polymer shells with biodegradable alternatives.
Read the peer-reviewed review of microencapsulation technology here.
The review notes that laundry detergent and fabric-softener formulations can contain microplastic encapsulants for controlled fragrance release, with commercially relevant capsule sizes often in the tens of micrometers.
That is exactly the size range that puts these materials directly into the microplastics discussion.
Microplastics Aren't Always Little Blue Beads
When most people hear “microplastic,” they picture tiny visible plastic beads.
That's an outdated picture.
Microplastics can be microscopic polymer particles with no obvious appearance to the consumer.
They don't need to look like plastic.
You may never see them.
Fragrance microcapsules can be small enough that the consumer has no idea they are present.
Their function isn't scrubbing.
Their function can be controlled release.
In laundry, that commonly means delivering perfume over time.
So when someone asks:
“Why would anyone put microplastics in detergent?”
the answer isn't necessarily that manufacturers wanted plastic in detergent.
The polymer has a technical function.
It protects another ingredient and controls when it is released.
But a useful commercial function doesn't automatically mean the environmental consequence should be ignored.
Europe Is Already Moving Against Intentionally Added Microplastics
This isn't theoretical.
Under Commission Regulation (EU) 2023/2055, Europe has begun restricting intentionally added synthetic polymer microparticles.
The official regulation specifically establishes transition periods affecting:
Detergents beginning October 17, 2028
and
Synthetic polymer microparticles used to encapsulate fragrances beginning October 17, 2029.
The regulation says the goal is to address pollution from intentionally present synthetic polymer microparticles that are persistent and extremely difficult to remove after entering the environment.
You can read the exact regulation through EUR-Lex.
This does not mean every polymer in every detergent is legally a microplastic.
That distinction is extremely important.
To fall under this particular definition, factors such as particle size, physical form, solubility, and degradability matter.
Soluble polymers and polymers meeting defined degradability criteria may fall outside the restriction.
So consumers should be skeptical of articles that label every synthetic polymer name on an ingredient list as a microplastic.
That is not scientifically accurate.
But regulators have confirmed something equally important:
Intentionally added synthetic polymer microparticles exist in detergents, and fragrance encapsulation is a known application.
The Industry Is Already Developing Replacements
One of the clearest signs that this issue is real is what the chemical industry itself is doing.
Researchers and manufacturers are actively developing biodegradable fragrance capsules.
Why?
Because conventional synthetic fragrance microcapsules may not meet the environmental expectations and regulatory standards of the future.
The peer-reviewed microencapsulation review describes numerous efforts to replace persistent synthetic shells with biodegradable materials.
Researchers have explored materials including:
- chitosan
- gum Arabic
- biodegradable polymer systems
- plant-derived materials
- alternative crosslinking technologies
The goal is essentially:
Keep the controlled-release fragrance function without leaving persistent synthetic microcapsules behind.
That is meaningful progress.
But it also raises a simpler question:
Do clothes need encapsulated fragrance at all?
“Fragrance” Can Hide a Lot of Complexity
Another issue is how ingredients appear on labels.
Consumers may see one word:
Fragrance.
But fragrance is rarely one individual substance.
A fragrance mixture can contain numerous aromatic ingredients.
And fragrance-delivery technology can make the system even more complex.
This creates a transparency problem.
A consumer may think:
“My detergent contains fragrance.”
But that does not necessarily tell them:
How many fragrance components are involved?
Whether the scent is encapsulated.
What the capsule material is.
Whether polymers are used to make the fragrance persist on fabric.
Whether all fragrance components are individually disclosed.
This is why “what's actually in laundry detergent?” is a more difficult question than reading five words on the front label.
Are Fragrances Dangerous?
Not automatically.
Again, precision matters.
Many fragrance ingredients can be safely used at appropriate concentrations.
But certain fragrance substances can cause allergic reactions or sensitization in susceptible people.
And fragrance serves a fundamentally different function than the core cleaning ingredients.
That's why consumers who prefer minimal exposure may reasonably choose fragrance-free laundry products.
The European Commission's own technical work on detergents recognizes fragrances and preservatives among detergent-related chemical categories with potential environmental or sensitization considerations.
What matters is informed choice.
If a customer wants fragrance, they should be able to choose it.
But they should also understand that fragrance is not cleaning performance.
Optical Brighteners: Cleaner—or Just Brighter?
Another category consumers often don't realize is present is optical brighteners.
Optical brighteners do not necessarily remove more dirt.
Instead, they absorb ultraviolet light and re-emit light in a way that can make fabrics appear whiter or brighter.
This creates an interesting distinction.
A white shirt can look brighter even though the brightening ingredient isn't directly responsible for removing the stain.
That's not inherently deceptive—optical brighteners have a clear textile function.
But consumers should understand the function.
There is a difference between:
removing more soil
and
changing the way fabric reflects light.
If you are choosing a simple laundry detergent, you may decide that optical brightening is unnecessary.
Other consumers may actively want that effect.
Transparency makes the difference.
Preservatives: Why Liquid Detergents Often Need Them
Liquid detergent has another challenge that powder largely avoids.
Water.
Once a product contains substantial water, it creates a different formulation environment.
Liquid products need to remain stable during months of:
Manufacturing.
Shipping.
Warehouse storage.
Retail storage.
Bathroom or laundry-room storage.
That can require preservation strategies.
Certain detergents therefore use preservatives.
Common preservative systems in household products can include compounds such as isothiazolinones.
Preservatives serve an understandable purpose:
Protect the product from microbial contamination during storage.
But some preservatives can also be sensitizers, which is why their concentration and use are regulated.
Once again:
The ingredient isn't there because the manufacturer randomly decided to add another chemical.
It solves a problem created partly by the product format.
A dry powder lives in a very different environment.
One Advantage of Powder: Less Water, Different Formulation Needs
This is one reason Myome's powder format is important.
Powder doesn't need to arrive at your house as a large water-based solution.
The washing machine already supplies the water.
That allows a concentrated dry formulation.
And a dry formulation can avoid some of the formulation requirements associated with keeping a water-rich product stable.
Powder isn't automatically clean.
And liquid isn't automatically toxic.
But the format matters.
A concentrated powder gives formulators an opportunity to simplify.
Not Every Polymer Is a Microplastic
This is worth repeating because it is one of the most common mistakes in clean-product marketing.
If you look at a conventional detergent ingredient list, you may see words such as:
Polyethylene glycol.
Polyacrylate.
Polyethyleneimine.
Polyvinyl alcohol.
Other polymer names.
You cannot automatically call all of those microplastics.
The European microplastics definition depends on whether the polymer exists as a solid particle, its size, solubility, degradability, and other physical characteristics.
A soluble polymer molecule in solution is not automatically equivalent to a persistent solid microplastic particle.
This matters because credible ingredient education should not scare consumers with chemistry terminology.
The legitimate concern around laundry microplastics is strong enough without exaggerating it.
One especially well-documented concern is synthetic polymer microcapsules used for controlled-release fragrance.
That's the claim worth focusing on.
What About Laundry Pods?
Laundry pods introduce another polymer conversation.
Most conventional laundry pods use a water-soluble film commonly based on polyvinyl alcohol, or PVA/PVOH.
PVA is different from a traditional insoluble microplastic.
It is water-soluble.
So simply calling every laundry pod wrapper a microplastic is too simplistic.
However, researchers have questioned how completely pod-derived PVA is degraded under real-world wastewater conditions.
A peer-reviewed study examining PVA from laundry and dishwasher pods in U.S. wastewater systems concluded that significant uncertainty remains around how much pod-derived PVA is fully biodegraded before entering the environment.
That doesn't prove every pod film persists forever.
It does show why “it disappears in the washing machine” is not the same statement as “we fully understand what happens environmentally afterward.”
Loose powder avoids the pod film altogether.
The Bigger Problem: Consumers Often Can't Tell What's There
Perhaps the most frustrating part of laundry detergent isn't any one ingredient.
It is the lack of intuitive transparency.
Imagine buying food with an ingredient label that said:
“Flavor.”
“Texture ingredient.”
“Preservative system.”
“Performance polymer.”
Most consumers would want more detail.
Yet household product labels have historically been much harder to interpret than food labels.
A word such as fragrance tells you very little about the underlying chemistry.
A phrase such as polymer tells you almost nothing about its physical form.
And advertising language like “fresh for weeks” tells you the benefit while often saying little about how that benefit was engineered.
That's why consumers should start asking better questions.
The Competitor Problem: “Long-Lasting Freshness” Has a Material Cost
Look across the mainstream laundry aisle and one message appears again and again:
More scent.
Longer scent.
Freshness that stays.
That promise is not magic.
Companies have spent decades developing fragrance-delivery technologies that allow scent to survive laundry and release later.
Scientific literature describes polymer microcapsules specifically designed for this purpose.
U.S. patents from major consumer-goods research programs also describe liquid and powder detergent formulations containing perfume microcapsules designed to release fragrance after washing.
That does not mean every detergent from a company holding such a patent contains synthetic microplastic capsules today.
A patent can describe technologies that appear in some products, future products, prototypes, or formulations that never reach stores.
So we should not look at a patent and declare:
“Every product from this company contains microplastics.”
That would be irresponsible.
But the patents confirm something more important:
Fragrance microencapsulation is not a fringe technology. It is established laundry-product engineering.
Consumers deserve to know when it is being used.
Red Flags to Look For When Shopping for Laundry Detergent
You don't need a chemistry degree to make a more informed choice.
Start with the product's promises.
“Long-Lasting Fragrance”
This isn't proof of microcapsules.
But it is a reason to investigate further.
Ask how the fragrance is made to persist.
“Scent Activated by Touch or Motion”
Controlled-release language should make you curious about the delivery technology.
Laundry Pods
Understand that the detergent is wrapped in an additional synthetic polymer film.
Water-soluble is not synonymous with nonexistent.
Heavy Fragrance
Ask whether you actually want perfume remaining on textiles that remain against your skin for hours.
Incomplete Ingredient Disclosure
A product that provides little information beyond broad categories gives consumers less ability to evaluate what they are buying.
More Ingredients Without an Obvious Function
Don't assume they're harmful.
Research the function.
A long name may perform an important cleaning role.
The issue is unnecessary chemistry—not unfamiliar chemistry.
What Myome Uses Instead
Myome's approach starts with a different question:
What does the detergent actually need to do?
Laundry needs to remove soils.
Manage water chemistry.
Address stains.
Keep loosened material from redepositing.
Remain stable and usable as a powder.
The Myome EveryDay Laundry formulation focuses on functional detergent ingredients including:
Sodium Carbonate
An alkaline builder that supports the cleaning environment.
Sodium Bicarbonate
Additional alkaline-builder support.
Sodium Citrate
Helps manage water hardness.
Sodium DDBS
A surfactant that helps remove soils.
Alcohol Ethoxylate
A second surfactant supporting cleaning performance.
Enzyme
Included for stain-removal support.
Sodium CMC
Supports formula stability, emulsification, and soil management.
EDTA
A chelating/water-softening ingredient.
Sodium Sulfate and Sodium Chloride
Supporting ingredients within the powder system.
Fumed Silica
Functions as an anti-caking ingredient to maintain powder flow.
Every ingredient should be evaluated by its function.
The goal shouldn't be to make chemistry disappear.
The goal should be to remove chemistry that doesn't need to be there.
What Myome Doesn't Need to Depend On
A concentrated laundry powder does not inherently need:
A large bottle filled with a water-based detergent.
An individual PVA pod around every dose.
A fragrance microcapsule designed to sit on clothing and burst later.
Multiple layers of scent-delivery technology just to make fabric smell “clean.”
Instead:
The powder goes into the machine.
The machine adds water.
The detergent chemistry cleans the clothes.
It is a simpler model.
“Microplastic-Free” Should Actually Mean Something
Microplastic-free is becoming a popular marketing term.
That creates both an opportunity and a responsibility.
Brands should be specific.
Does “microplastic-free” mean:
No intentionally added insoluble synthetic polymer microparticles?
No synthetic fragrance microcapsules?
No pod films?
No conventional plastic packaging?
Those aren't necessarily the same claim.
The most credible companies should be able to explain exactly what they mean.
This matters because the European regulation itself distinguishes between:
Synthetic polymer microparticles.
Soluble polymers.
Degradable polymers.
Fragrance encapsulation.
Other detergent polymer uses.
Precision builds trust.
Why the EU Regulation Matters to American Consumers
Someone in the United States might reasonably ask:
Why should I care what the European Union is doing?
Because regulation often reveals where scientific and environmental scrutiny is increasing.
The EU restriction concluded that intentionally added persistent microplastics can accumulate in the environment and are extremely difficult to remove once emitted.
It explicitly includes detergents among the product categories being addressed.
The regulation does not prove that every detergent containing a synthetic ingredient is dangerous.
It does demonstrate that regulators believe intentionally added persistent synthetic polymer microparticles create enough environmental concern to justify restrictions.
That should make consumers ask questions.
“Bad Ingredient” Isn't a Scientific Category
This is important.
There is no scientific category called:
Bad chemical.
Ingredients have properties.
Functions.
Concentrations.
Hazards.
Exposure levels.
Environmental persistence.
Biodegradability.
Aquatic toxicity.
Sensitization potential.
A detergent ingredient can be highly useful while also creating environmental trade-offs.
Another can be unnecessary for cleaning but desirable for consumer experience.
So rather than declaring every unfamiliar ingredient toxic, a better framework is:
Does it clean?
Does it support another necessary cleaning function?
Is it biodegradable?
Is it persistent?
Is it being added primarily for fragrance or appearance?
Is there a simpler alternative?
Is the company transparent about why it's there?
Those questions lead to much better purchasing decisions.
Why “Clean” Should Mean More Than Fragrance
The laundry industry has spent decades teaching consumers to smell their clothes to determine whether they're clean.
That is remarkable when you think about it.
Cleanliness isn't a fragrance.
Clean laundry can smell neutral.
What matters is whether:
Body oils were removed.
Dirt was removed.
Food stains were removed.
Odor precursors were removed.
Soils were rinsed away.
The textile came out genuinely clean.
Perfume is optional.
And designing microscopic polymer capsules solely to make that perfume last even longer raises a fair question about priorities.
Are we engineering laundry around cleaning?
Or around making consumers perceive cleaning?
Five Questions to Ask About Your Current Detergent
Next time you look at your laundry detergent, ask:
1. Is fragrance listed?
If yes, decide whether fragrance is something you actually want on your clothing.
2. Does the company explain how long-lasting fragrance works?
If the product heavily promotes scent persistence, look for information about fragrance-delivery technology.
3. Is the full ingredient list easy to find?
Transparency should not require detective work.
4. Is the detergent wrapped in a pod?
Understand what the pod film is made from and why it is necessary.
5. Can the company clearly explain its microplastic-free claim?
A credible answer should be specific, not simply marketing language.
What Consumers Should Look For Instead
A thoughtful laundry product should prioritize:
Transparent ingredients
You should be able to understand what is there and why.
Functional chemistry
Ingredients should contribute to cleaning, water management, stain removal, or formula performance.
Concentration
Why ship unnecessary volume if the washing machine supplies water?
Minimal unnecessary materials
Every wrapper, capsule, bottle, dye, and added feature should have to justify itself.
Responsible detergent chemistry
“Natural” isn't enough.
Ingredients should be selected based on performance, safety, and environmental profile.
Microplastic-conscious formulation
Especially avoid unnecessary persistent synthetic polymer microparticles used for features like controlled-release fragrance.
The Bottom Line: What's Actually in Laundry Detergent?
The answer depends entirely on the detergent.
Some ingredients are there because laundry is genuinely difficult chemistry.
Surfactants remove grease.
Builders manage water hardness.
Enzymes attack stains.
Chelators deal with mineral ions.
Anti-redeposition ingredients help keep soil from returning to clothing.
Those ingredients solve real problems.
But modern laundry products can also contain additional technologies designed to change scent, brightness, viscosity, color, stability, and the sensory experience of “freshness.”
Among the most important examples are synthetic polymer microcapsules used to deliver long-lasting fragrance.
Scientific research confirms that polymeric microcapsules are widely used in detergent and fragrance applications.
European regulators have specifically targeted intentionally added synthetic polymer microparticles in detergents and fragrance encapsulation for future restriction.
That doesn't mean every detergent contains microplastics.
It doesn't mean every polymer is a microplastic.
And it doesn't mean every chemical-sounding ingredient is dangerous.
But it does mean consumers deserve better transparency.
Laundry detergent should not require blind trust.
You should know:
What's cleaning your clothes.
What's supporting that cleaning.
What's being added simply for scent.
What's being added to make that scent last.
And what happens to those materials after they leave your washing machine.
At Myome, the philosophy is straightforward:
Use ingredients because they have a job to do.
Remove stains.
Lift oils.
Manage hard water.
Support the wash.
Keep the powder functional.
Clean the clothing.
Everything else should have to earn its place.
Because your laundry doesn't need to smell like perfume for two weeks to be clean.
It needs to be clean.
And when a product is used on clothes, towels, sheets, and fabrics that touch your body every single day, knowing what's inside shouldn't be optional.