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The Scientific Committee on Consumer Safety (SCCS) has issued scientific opinions on the preservatives polyaminopropyl biguanide (PHMB) and hydroxyethoxyphenyl butanone (HEPB) in cosmetics.

The opinions are:

  • PHMB is safe for use up to a concentration of 0.1%
  • HEPB is not safe in rinse-off, oral care and leave-on products at levels above 2.0%

The opinions were released on April 7, 2017.

Source1 Source2


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