STUDIES



Synthetic / “non-natural” detergents (esp. surfactants, enzymes) — 7 studies

  1. Surfactant-containing detergents & dermal health (review, 2025) — skin barrier disruption mechanisms (lipid disruption, protein denaturation, inflammation).https://pubmed.ncbi.nlm.nih.gov/40795538/ 

  2. Irritant & sensitizing potential of eight surfactants (2010) — controlled testing of common surfactants; irritancy/sensitization evidence.https://journals.sagepub.com/doi/full/10.2310/6620.2010.10022

  3. Laundry detergents & skin irritancy (review, 2014) — summarizes irritant/cytotoxic interactions of detergent surfactants on skin (esp. sensitive skin).https://dm.henkel-dam.com/is/content/henkel/AllFreeClearHCP-US-EN-ReviewSummary

  4. Detergents exacerbating atopic dermatitis (case reports, 2015) — clinical improvement after avoiding surface-active detergents.https://pmc.ncbi.nlm.nih.gov/articles/PMC4310308/ 

  5. Outbreak of asthma in a modern detergent factory (2000) — enzyme sensitization + work-related respiratory symptoms tied to airborne exposure.https://www.sciencedirect.com/science/article/abs/pii/S0140673600032645 

  6. Occupational asthma/allergy in the detergent industry (review, 2002) — enzyme-induced occupational asthma/allergy + controls.https://pubmed.ncbi.nlm.nih.gov/11964756/ 

  7. Managing occupational allergy risk in enzyme detergent industry (review, 2015) — prevention/controls around enzyme proteins.https://www.tandfonline.com/doi/full/10.1080/15459624.2015.1011741 

  8. Parabens, phenols, phthalates & puberty (systematic review, 2022) — epidemiologic literature on pubertal timing endpoints.https://pmc.ncbi.nlm.nih.gov/articles/PMC9742306/ 

  9. Urinary parabens & hormones/semen quality (human study, 2010) — examines semen quality + reproductive hormones; mixed findings (some signals like sperm DNA damage noted).https://pmc.ncbi.nlm.nih.gov/articles/PMC3040614/

  10. Urinary parabens & semen quality/reproductive hormones (human study, 2018) — cross-sectional associations in young men.https://www.sciencedirect.com/science/article/abs/pii/S0048969717333144 

  11. Paraben mixture & semen quality (human study, 2023) — mixture modeling suggests negative associations with sperm concentration/count/motility.https://www.sciencedirect.com/science/article/pii/S0147651323009570 

  12. Urinary parabens & sperm quality (human study, 2024) — reports associations between urinary parabens and sperm parameters.https://pmc.ncbi.nlm.nih.gov/articles/PMC11182354/ 

  13. Parabens as endocrine disruptors (review, 2023) — mechanisms + experimental evidence on endocrine effects. https://www.mdpi.com/1422-0067/24/20/15246 

  14. Custodians using cleaning products: urinary phthalate metabolites (2015) — links occupational cleaning context to phthalate metabolite patterns. https://pmc.ncbi.nlm.nih.gov/articles/PMC4715255/ 

  15. Women’s product use & urinary phthalate metabolites (2012) — fragranced product use associated with multiple urinary phthalate metabolites. https://pmc.ncbi.nlm.nih.gov/articles/PMC4097177/ 

  16. Consumer product exposures & urinary phthalates (2012) — identifies product-use predictors of urinary metabolites. https://pmc.ncbi.nlm.nih.gov/articles/PMC3439834/ 

  17. Phthalates & human health impacts (review, 2021) — broad synthesis of health endpoints (repro/development/endocrine). https://pmc.ncbi.nlm.nih.gov/articles/PMC8157593/ 

  18. Detergent residues on textiles and effects on human epithelial cells (2019) — evaluates persistence of laundry detergent components after washing and their biological activity in vitro.
    https://pubmed.ncbi.nlm.nih.gov/30500342/

Microplastics (and polymers) in products + plastic jugs/packaging 

  1. Microplastics in household cleaning products incl. laundry detergents (2023) — measures MP occurrence/types/sizes and estimates emissions. https://www.sciencedirect.com/science/article/abs/pii/S004896972304528X 

  2. PVA from detergent pods: fate in wastewater + emissions estimate (2021) — environmental fate analysis of pod film polymer. https://pmc.ncbi.nlm.nih.gov/articles/PMC8199957/ 

  3. Leachability of microplastics from common plastics (2021) — tests MPs released from plastics (PET/HDPE/PP/etc.), including roles of conditions like pH. https://www.sciencedirect.com/science/article/abs/pii/S0301479721010574 

  4. Polyethylene packaging as a microplastics source (review, 2025) — polymer-specific review of PE packaging → MPs and evidence gaps on human thresholds. https://pmc.ncbi.nlm.nih.gov/articles/PMC12295697/ 

  5. A review of the endocrine disrupting effects of micro and nano plastics and their associated chemicals in mammals (2023) https://pmc.ncbi.nlm.nih.gov/articles/PMC9885170/

1,4-Dioxane — 4 studies / major scientific profiles

  1. Mechanistic considerations in 1,4-dioxane cancer risk (review, 2022) — integrates toxicology + risk discussion, esp. drinking water exposure. https://pmc.ncbi.nlm.nih.gov/articles/PMC10120849/

  2. Carcinogenicity studies overview (2009) — summarizes key animal bioassays + limited worker epidemiology context. https://www.sciencedirect.com/science/article/abs/pii/S0278691509003895 

  3. Worker cohort mortality follow-up (1978) — classic occupational epidemiology study of exposed workers.https://pubmed.ncbi.nlm.nih.gov/641607/ 

  4. ATSDR Toxicological Profile for 1,4-Dioxane (2023) — comprehensive evidence review (human + animal + mechanistic). https://www.atsdr.cdc.gov/toxprofiles/tp187.pdf 

Artificial dyes (synthetic color additives) — 5 studies

  1. Food additives (synthetic colors + preservative) & hyperactivity (RCT/crossover, 2007) — widely cited trial in children. https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(07)61306-3/abstract 

  2. Artificial colors + preservative challenge & hyperactivity (double-blind, 2004) — earlier trial in 3-year-olds. https://pmc.ncbi.nlm.nih.gov/articles/PMC1719942/ 

  3. Synthetic food dyes & behavioral impacts in children (review, 2022) — integrates human trials + animal toxicology.https://pmc.ncbi.nlm.nih.gov/articles/PMC9052604/ 

  4. Allura Red AC exposure promotes experimental colitis (mouse study, 2022) — gut inflammation susceptibility findings (animal). https://www.nature.com/articles/s41467-022-35309-y 

  5. Red 40: DNA damage, microbiome, colonic inflammation (mouse study, 2023) — mechanistic signals in animal model. https://www.sciencedirect.com/science/article/pii/S2214750023000926