Filed under: Cosmetics, EU Information, Nanomaterials | Tags: Cosmetics, nanotechnology, toxicity testing
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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