We conducted a randomised controlled trial (RCT) on a sample of 1,000 female garment workers in three factories in Bangladesh, off ering access to free sanitary pads at work to 500 of the workers. We cross-randomised participation in information sessions for hygienic menstrual health care implemented by an experienced local NGO, and we vary the salience of commonly perceived taboos in the pad collection process. We find effects of the free pads and information sessions on self-reported pad use, but not of the taboo variations. We find eff ects on absenteeism and adherence to traditional restrictive and health-adverse taboos surrounding menstruation, but not on worker turnover or self-reported well-being at work