Methylparaben is suspected of causing endocrine-disrupting effects, according to European Commission Annex 13. Includes both Category 1 (evidence for endocrine disruption in living organisms) and Category 2 (evidence of potential to cause endocrine disruption in in vitro studies)
Methylparaben is suspected of causing skin or sense organ toxicity, according to sources compiled by Scorecard (www.scorecard.org)
More than half of the toxicity tests required to assess chemical safety have not been conducted for this ingredient.
Concern that chronic exposure to paraben compounds with estrogenic activity may contribute to breast cancer.