Environ Health Perspect

Background:Personal care products (PCPs) are exposure sources to phthalates and parabens; however, their contribution to men\u2019s exposure is understudied.Objectives:We examined the association between PCP use and urinary concentrations of phthalate metabolites and parabens in men.Methods:In a prospective cohort, at multiple study visits, men self-reported their use of 14 PCPs and provided a urine sample (2004\u20132015, Boston, MA). We measured urinary concentrations of 9 phthalate metabolites and methylparaben, propylparaben, and butylparaben. We estimated the covariate-adjusted percent change in urinary concentrations associated with PCP use using linear mixed and Tobit mixed regressions. We also estimated weights for each PCP in a weighted binary score regression and modeled the resulting composite weighted PCP use.Results:Four hundred men contributed 1,037 urine samples (mean of 3/man). The largest percent increase in monoethyl phthalate (MEP) was associated with use of cologne/perfume (83%, p-value<0.01) and deodorant (74%, p-value