Associations between self-reported personal care products use and menstrual cycle length and regularity in a US digital cohort.

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Title: Associations between self-reported personal care products use and menstrual cycle length and regularity in a US digital cohort.
Authors: Wang Z; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA. Electronic address: zwang@hsph.harvard.edu., Peebles E; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Asokan G; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Duttweiler L; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Jukic AM; Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, USA., Wilcox AJ; Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, Durham, NC, USA., Abrams K; Health, Apple Inc., Cupertino, CA, USA., Suharwardy SH; Health, Apple Inc., Cupertino, CA, USA; Division of Maternal-Fetal Medicine and Obstetrics, Department of Obstetrics and Gynecology, Stanford University, Stanford, CA, USA., Hauser R; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Williams MA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology and Population Health, Stanford School of Medicine, Stanford, CA 94305, USA., Onnela JP; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Coull BA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA., Mahalingaiah S; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
Source: Environment international [Environ Int] 2026 May; Vol. 211, pp. 110260. Date of Electronic Publication: 2026 Apr 15.
Publication Type: Journal Article
Journal Info: Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 7807270 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6750 (Electronic) Linking ISSN: 01604120 NLM ISO Abbreviation: Environ Int Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1873-6750
DOI:10.1016/j.envint.2026.110260