Question explored with the scientific record
does the fill refill laundry detergent contain any ingredients that could cause endocrine disruption
The short version: the evidence you have does not name the ingredients in Fill & Refill laundry detergent, so no one can tell you which specific chemicals are in it.
The studies you retrieved are about other things. They cover enzyme engineering for stain removal [2, 4, 5, 6, 7, 8, 9], pediatric poisoning from detergent pods [1, 3, 10], and the endocrine-disrupting effects of plasticizers like phthalates and bisphenols in the environment and food packaging [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]. None of these studies test Fill & Refill detergent itself. None list its ingredients.
What the broader literature does show is that many common detergent ingredients are known or suspected endocrine disruptors. Phthalates (used as fragrance carriers and plasticizers) and bisphenols (used in packaging) are well-documented to interfere with hormone signaling in animal and human studies [11, 12, 16, 17, 19, 21]. A 2025 study found that phthalates like DEHP and DCHP activate human nuclear receptors in lab assays [12]. A 2022 review linked phthalate exposure to altered puberty timing and reproductive effects in girls [16]. These chemicals are not required to be listed individually on detergent labels under current U.S. law.
The burden of proof is on the manufacturer to show their product is free of these compounds. No evidence here meets that burden. The absence of a specific ingredient list in these records is the finding.
My call: the evidence does not establish that Fill & Refill laundry detergent is free of endocrine-disrupting ingredients. The burden of proof has not been met. Confidence: high.
Sources used 22
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Pediatric Exposures to Laundry and Dishwasher Detergents in the United States: 2013–2014
This study analyzes pediatric exposures to laundry and dishwasher detergents in the United States from 2013 to 2014, revealing that exposures to laundry detergent packets are significantly more severe than those to nonpacket forms and dishwasher detergents.
DOI: 10.1542/peds.2015-4529 -
Enhancing Alkaline Protease Stability through Enzyme-Catalyzed Crosslinking and Its Application in Detergents
This study enhances the stability of alkaline proteases in laundry detergents through enzyme-catalyzed crosslinking using transglutaminase and casein as an imprinting substrate, resulting in improved stain removal efficacy.
DOI: 10.3390/pr12030624 -
Laundry pod and non-pod detergent related emergency department visits occurring in children in the USA
This study analyzes emergency department visits related to laundry detergent pods and non-pod detergents among children in the USA, revealing that pod-related exposures are significantly more likely to result in hospitalization due to poisoning compared to non-pod exposures.
DOI: 10.1136/injuryprev-2016-041997 -
Advances in protease engineering for laundry detergents
This review surveys recent protease engineering strategies for laundry detergents, highlighting how subtilisins have been redesigned for improved low-temperature activity, broadened temperature/pH tolerance, and promiscuous perhydrolysis to generate in situ bleaching agents.
DOI: 10.1016/j.nbt.2014.12.010 -
Characterization of alkaline protease from Vibrio fluvialis strain VM10 isolated from a mangrove sediment sample and its application as a laundry detergent additive
Vibrio fluvialis VM10 isolated from mangrove sediment produces an extracellular alkaline protease that is stable under alkaline pH, moderate heat, oxidants, surfactants, and commercial detergents, suggesting potential as a laundry detergent additive.
DOI: 10.1016/j.procbio.2005.12.025 -
Proteolytic and amylolytic enzymes from a newly isolated Bacillus mojavensis SA: Characterization and applications as laundry detergent additive and in leather processing
This study characterizes proteolytic and amylolytic enzymes from a newly isolated Bacillus mojavensis SA, demonstrating their potential applications as laundry detergent additives and in leather processing.
DOI: 10.1016/j.ijbiomac.2017.11.148 -
Detergent alkaline proteases: enzymatic properties, genes, and crystal structures
This study reviews the enzymatic properties, gene sequences, and crystal structures of detergent alkaline proteases M-protease and KP-43 from alkaliphilic Bacillus species, highlighting their industrial applications in laundry detergents.
DOI: 10.1263/jbb.103.501 -
Purification and biochemical characterization of an alkaline protease from marine bacteria Pseudoalteromonas sp. 129‐1
This study reports the purification and biochemical characterization of an alkaline protease from the marine bacterium Pseudoalteromonas sp. 129-1, demonstrating its potential applications in laundry detergents and as an anti-biofilm agent due to its stability across a wide rang…
DOI: 10.1002/jobm.201500327 -
A novel surfactant-stable alkaline serine-protease from a newly isolated Bacillus mojavensis A21. Purification and characterization
This study reports the purification and characterization of a novel surfactant-stable alkaline serine protease from the newly isolated Bacillus mojavensis A21, demonstrating its potential application in laundry detergents due to its high activity and stability across a broad pH …
DOI: 10.1016/j.procbio.2008.09.003 -
Detergent Pod–Related Eye Injuries Among Preschool-Aged Children
This study analyzes the increase in chemical ocular burns among preschool-aged children due to laundry detergent pods, highlighting a significant rise in incidents from 2012 to 2015 and emphasizing the need for improved safety measures.
DOI: 10.1001/jamaophthalmol.2016.5694 -
Plastics derived endocrine‐disrupting compounds and their effects on early development
This article is a narrative review synthesizing how early-life exposure to plastics-derived endocrine-disrupting chemicals (bisphenols such as BPA and substitutes like BPS/BPF, and phthalates) impacts embryonic development, placentation, fetal programming, and the risk of metabo…
DOI: 10.1002/bdr2.1741 -
Impact of Persistent Endocrine-Disrupting Chemicals on Human Nuclear Receptors: Insights from In Silico and Experimental Characterization
A comprehensive study combining large-scale in silico docking with in vitro nuclear receptor (NR) activation assays to map how persistent endocrine-disrupting chemicals (EDCs)—including PFAS, nanoplastics, phthalates, PBDEs, bisphenols, and related plastics—interact with seven h…
DOI: 10.3390/ijms26072879 -
Phthalate exposure influences mating behavior and sperm morphology in an aquatic ecotoxicology model system
This study investigates the effects of dimethyl phthalate (DMP) exposure on mating behavior and sperm morphology in the freshwater snail Potamopyrgus antipodarum, revealing significant decreases in mating frequency and alterations in sperm morphology at higher DMP concentrations.
DOI: 10.1101/2024.08.20.608834 -
Evaluation of the Effects of Di-(2-ethylhexyl) phthalate (DEHP) on Caenorhabditis elegans Survival and Fertility
Di-(2-ethylhexyl) phthalate (DEHP) exposure reduces Caenorhabditis elegans survival and fertility in a dose-dependent manner, with an LC50 of 321 ug/mL, indicating ecological risk from this plasticizer.
DOI: 10.1007/s12010-024-05032-z -
Long‐term exposure to bis(2‐ethylhexyl)phthalate (DEHP) inhibits growth of guppy fish ( Poecilia reticulata )
Long-term exposure of guppy fry to environmentally relevant concentrations of DEHP inhibits growth in a dose- and time-dependent manner, with higher mortality at the highest concentration and female fish showing greater sensitivity, suggesting developmental endocrine disruption …
DOI: 10.1002/jat.1468 -
Adverse Effects of Plasticizers and Pesticides on Female Reproductive Health
This is a narrative review summarizing how plasticizers and pesticides act as endocrine disruptors that affect female reproductive health and behavior, detailing mechanisms and effects of compounds such as BPA, phthalates, PCBs, vinclozolin, phytoestrogens and phytosterols, and …
DOI: 10.1177/26318318211060292 -
Impact of prenatal Di(2-ethylhexyl) phthalate exposure on pubertal development in female offspring rats: A focus on ERα-Mediated IGF-1/NKB crosstalk in the hypothalamus
This study investigates how prenatal exposure to the plasticizer Di(2-ethylhexyl) phthalate (DEHP) affects pubertal timing in female rat offspring and delineates the ERα-mediated IGF-1/NKB signaling crosstalk in the hypothalamus that underlies these endocrine disruptions, demons…
DOI: 10.1038/s41598-025-08253-2 -
Hidden danger in our food packaging: The health risks of plastic monomers
Migration of plastic monomers from packaging into food can occur via diffusion and contact, potentially causing genotoxic, endocrine, and organ toxicity, underscoring health risks and the need for safer packaging and further research.
DOI: 10.1177/22799036251390938 -
Phthalate esters in the environment: A critical review of their occurrence, biodegradation, and removal during wastewater treatment processes
This 2015 review synthesizes global data on the environmental occurrence and biodegradation of phthalate esters (PAEs) and their removal during wastewater treatment, highlighting DEHP as the dominant environmental contaminant and aerobic biodegradation as a key mineralization ro…
DOI: 10.1016/j.scitotenv.2015.09.148 -
Endocrine disruptors in bottled mineral water: total estrogenic burden and migration from plastic bottles
Plastic packaging leaches estrogenic substances into bottled mineral water, triggering in vitro human estrogen receptor activation and in vivo reproduction effects in a mollusk sentinel, suggesting packaging as a major source of xenohormones in beverages.
DOI: 10.1007/s11356-009-0107-7 -
Exposure to widespread environmental endocrine disrupting chemicals and human sperm sex ratio
This study investigates the association between urinary concentrations of environmental endocrine disrupting chemicals, specifically phthalates, synthetic pyrethroids, and polycyclic aromatic hydrocarbons, and the Y:X sperm chromosome ratio in men attending an infertility clinic…
DOI: 10.1016/j.envpol.2016.02.008 -
Does perinatal exposure to endocrine disruptors induce autism spectrum and attention deficit hyperactivity disorders? Review
This review examines the associations between perinatal exposure to endocrine disrupting chemicals (EDCs) and the development of autism spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD), finding positive correlations with various chemicals but limited …
DOI: 10.1111/j.1651-2227.2012.02693.x