Cyclopentasiloxane

Extremely common product in skincare products, cyclopentasiloxane is a silicon based cyclic compounds.


  • While deemed safe in low concentrations, at higher concentrations cyclopentasiloxane has been shown to cause endocrine disruptions
  • Has been shown to reduce appearance of scars
  • additionally, there are environmental concerns associated with bioaccumulation
  • there is some concern that prolonged usage could cause endocrine disruption
  • In 2010, the European commission concluded that it was safe for topical use at low concentrations but should not be inhaled, ie. NOT USED IN HAIR CARE AEROSOL PRODUCTS





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