governmentchemist


Data sought by European Commission on nano ingredients in cosmetics by Nick Boley
March 31, 2015, 08:24
Filed under: Cosmetics, EU Information, Nanomaterials | Tags: , ,

The European Commission has asked for more detailed toxicity data on three nano ingredients which are quite commonly used in cosmetics.

The three substances are:

  • nano collodial silver;
  • nano styrene/acrylates copolymer; and
  • nano sodium styrene/acrylates copolymer.

Nano colloidal silver is used as an antimicrobial, has a lowest cut off particle size of 1 nm and a maximum concentration up to 1.0 % in cosmetic products. Although the toxicity data needs to be more detailed, there is still a difficulty in accurately characterising and measuring the concentration of nano-colloidal silver, with robust validated methods not being available.

Similar problems exist for the nano-forms of the two copolymers.

 

 

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