Cosmetics Flashcards

1
Q

what is a cosmetic

A

and substance or mixture intended to be placed in contact with various external parts of the human body

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2
Q

what is the trace value of cosmetics

A
  • increasing use
  • independent of age gender ethnicity
  • easily transferred
  • relatively persistent
  • uncommon layering combos increase probative value
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3
Q

special effect pigments

A

pearlescent
iridescent = light reflection causes colour change

gomichromism = where surfaces appear to change

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