# Does Laundry Detergent Reduce Microfiber Shedding? What the Evidence Says

> Does laundry detergent reduce microfiber shedding? See what one purpose-formulated detergent study found, why results differ, and how to judge product claims before buying.

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- Source: https://nomicroliving.nicheflash.com/blogs/does-laundry-detergent-reduce-microfiber-shedding
- Author: [NoMicroLiving Editorial Team](https://nomicroliving.nicheflash.com/authors/nomicroliving-editorial-team)
- Publisher: NoMicroLiving
- Published: 2026-10-19
- Updated: 2026-10-19

One 2025 study found lower textile fiber-fragment emissions with a specific purpose-formulated detergent than with a conventional detergent, but it does not show that detergents generally reduce shedding or that the result improves health. Treat it as a promising, product-specific finding that needs broader and repeated testing.[1]

 - A 2025 study reported lower fiber-fragment emissions with one specially formulated detergent than with one conventional detergent.[1]
- An earlier study examined a different detergent intervention and does not directly test the 2025 product.
- The 2025 study tested new textiles and garments, and its authors said performance over successive washes needs more testing.[1]
- The research concerns fibers released from textiles during laundering, not detergent itself turning into microplastics or a demonstrated reduction in human exposure.[1][2]

 ## Does laundry detergent reduce microfiber shedding?

 It may reduce shedding when a particular formulation is used, but current evidence does not establish that laundry detergent in general does so.[1][3]

 Microfiber shedding is the release of textile fibers from fabric during laundering. In this article, the question is whether detergent formulation affects fibers coming off clothing—not whether detergent ingredients or packaging are themselves a source of plastic particles. The American Cleaning Institute (ACI), an industry association, says that “Laundry detergent does not contribute to microplastics”; that statement addresses detergent as a potential source, not whether a detergent formulation can change clothing-fiber emissions.[2]

 The product tested in the 2025 study was The Laundry, a purpose-formulated liquid detergent developed by BASF and Inditex and commercially marketed by Zara Home.[1] The study’s result applies to that product comparison; it is not evidence that any detergent described as “microplastic-reducing” will work.

 ## What did the 2025 detergent study actually find?

 The study compared one purpose-formulated liquid detergent with one conventional liquid detergent, rather than testing a range of brands or generic laundry additives.[1]

 In whole-garment tests, wash-water emissions were 0.37 g/kg with the purpose-formulated detergent and 0.50 g/kg with the conventional detergent (p = 0.02, n = 8); across washing and drying, measured emissions were 0.87 g/kg and 0.99 g/kg, respectively (p = 0.02).[1] The difference across washing and drying was reported as a 12 ± 8% reduction, a more modest result than the wash-water comparison alone might suggest.[1]

 In polyester taffeta trials, the reported reductions ranged from 47 ± 15% to 85 ± 22% in single-load trials and from 56 ± 16% to 82 ± 5% in full-load trials.[1] Those figures describe the study’s specific material and test conditions; they are not a performance guarantee for an ordinary household load.

 The researchers used new textiles and garments and said more testing is needed to assess performance over successive washes.[1] The results support a formulation-specific finding, not a conclusion about reduced human exposure or a health benefit.[1]

 ## Why did an earlier study find no detergent effect?

 The earlier study tested a different detergent intervention and therefore does not directly contradict the 2025 result.[1]

 In a polyester-fleece experiment, Lant and colleagues found no significant impact on microfiber release from the detergent pod they tested (p = 0.65); fabric softener also had no significant impact in the tests described (p = 0.50).[3] The pod and softener were not the specially formulated liquid detergent tested in 2025, so these findings cannot tell us whether that specific product would perform the same way in the earlier experiment.[1]

 The 2020 paper disclosed that the work was sponsored by Procter & Gamble, which manufactured detergents and fabric softeners.[3] That disclosure is relevant context, but it does not by itself establish whether the findings are right or wrong. Neither study settles how all detergent products perform.

 ## Should you buy a detergent marketed to reduce shedding?

 Consider a named, purpose-formulated product a promising option only when its claim is tied to a clearly described textile-shedding test; do not assume generic detergent, pods, fabric softener, or an additive has the same effect.[1]

 When assessing a claim, look for the exact product tested, what detergent it was compared with, which fabrics and garments were used, and whether results report wash-water emissions separately from emissions across washing and drying. The 2025 study illustrates why that distinction matters: its whole-garment wash-water result was a larger reduction than its reported reduction across washing and drying.[1]

 **What the available evidence supports—and what a shopper can reasonably do**

| What the evidence supports | What it does not establish | What to do now |
| --- | --- | --- |
| One purpose-formulated detergent had lower measured emissions than one conventional detergent in the 2025 study.[1] | That all detergents, pods, softeners, or laundry additives reduce shedding.[1] | Check whether a claim names the tested product and describes its test conditions. |
| An ordinary detergent pod and fabric softener had no significant effect in the earlier polyester-fleece tests.[3] | That the earlier test directly evaluated the specialty formulation from 2025.[1] | Do not treat the different study results as a simple contradiction or as a universal verdict. |
| The 2025 result is promising for the product and conditions studied.[1] | Performance across many products, fabrics, repeated washes, or a health benefit.[1] | Wait for broader comparisons and repeated-wash testing before treating the claim as established. |

 A stronger evidence base would compare multiple named products across different fabrics and garments, repeat tests over successive washes, and report both wash-water and washing-plus-drying emissions. These are useful details to look for in future product claims, not tests already established by the studies summarized here.[1]

 If you choose to try the tested formulation, treat the study as an early product-specific result—not proof of lower personal exposure or reduced health risk.[1] The ACI’s statement about detergent itself and the research on fibers released from clothing address different questions; keep them separate when weighing claims.[1][2]

 ## Frequently asked questions

 ### What ingredient or formulation change in The Laundry may explain its result?

 The evidence summarized here does not establish which ingredient or formulation change caused the measured difference. The result is for the tested product compared with one conventional detergent, so do not assume a particular ingredient is responsible.[1]

 ### Does the detergent study’s result apply to cotton and other non-polyester fabrics?

 The reported polyester taffeta results apply to those test conditions; the evidence summarized here does not establish the same effect for cotton or other fabrics.[1]

 ### How should manufacturers test whether a detergent reduces shedding over repeated washes?

 A useful test would compare a named formulation with a conventional control across multiple fabrics and garments, repeat washes, and report emissions from wash water separately from emissions across washing and drying. The 2025 study’s authors called for more testing over successive washes.[1]

 ### Does reduced fiber shedding during washing necessarily mean fewer fibers are released during drying?

 No. The study reported a wash-water reduction that did not translate into an equally large reduction across washing and drying; it reported an overall reduction of 12 ± 8% in whole-garment tests.[1]

## References

1. [sciencedirect.com](https://www.sciencedirect.com/science/article/pii/S2772397625000127)
2. [cleaninginstitute.org](https://www.cleaninginstitute.org/cleaning-tips/clean-home/ask-aci/ask-aci-microplastics-laundry)
3. [journals.plos.org](https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0233332)