Parabins is found in a number of cosmetic products. This study found men with high urine levels of parabens had an increased risk of abnormal sperm morphology, DNA stainability, reduced sperm motility and testosterone level. The rule of thumb, is avoid chemical exposure to the body. More studies are needed as this is the first study on this topic.
Joanna Jurewicz; Michał Radwan et al. Human Semen Quality, Sperm DNA Damage, and the Level of Reproductive Hormones in Relation to Urinary Concentrations of Parabens. Journal of Occupational and Environmental Medicine. Publish Ahead of Print():, JUL 2017 DOI: 10.1097/JOM.0000000000001106 https://insights.ovid.com/crossref?an=00043764-900000000-98881