title: Sensory analysis of cosmetic powders: personal care ingredients and emulsions.
abstract: OBJECTIVE
  The powders are ingredients increasingly used in the formulation of cosmetic products for the sensory qualities they give. The objective of this study was the development of a lexicon and a referential for sensory characterization of these pure raw materials as well as formulations which contain them.
  
  
  METHODS
  Eleven expert panellists from Ecole de biologie industrielle de Cergy (France) developed a lexicon and a referential based on 12 powders of different chemical natures. The selected attributes were then used for performing a quantitative descriptive profile of two powders and an emulsion containing or not one of these two powders.
  
  
  RESULTS
  A lexicon has been established through a consensus approach of the panel. It contains seven attributes that allow the evaluation of the powders in four phases: the appearance, the pickup, the application and the after-feel. This lexicon contains definitions and assessment protocols and provides references products. The quantitative descriptive profile of two powders of the same chemical nature, but different in physical quality showed significant differences in sensory level between products. These same attributes used to evaluate an emulsion containing the powder or not allowed to prove the contribution of these raw materials on the sensory specificities of the emulsion.
  
  
  CONCLUSIONS
  The lexicon developed in this study can be used for assessment of other powders but also to define the quantities necessary to put in the formulation to meet the sensory characteristics of these raw materials powder.
authors.affiliation: Brenntag Holding GmbH, Stinnes-Platz 1, Mülheim an der Ruhr, 45472, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Moussour
authors.affiliation: Ecole de Biologie Industrielle, 49, avenue des Genottes, Cergy-Pontoise Cedex, F 95895, France.
authors.forename: M
authors.initials: M
authors.lastname: Lavarde
authors.affiliation: Ecole de Biologie Industrielle, 49, avenue des Genottes, Cergy-Pontoise Cedex, F 95895, France.
authors.forename: A-M
authors.initials: AM
authors.lastname: Pensé-Lhéritier
authors.affiliation: Brenntag Holding GmbH, Stinnes-Platz 1, Mülheim an der Ruhr, 45472, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Bouton
mesh_terms: D003358:Cosmetics; D004655:Emulsions; D011208:Powders
chemical_list: D003358:Cosmetics; D004655:Emulsions; D011208:Powders
keywords: emulsions; formulation; polymers; sensory evaluation; statistics