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Analysis of cosmetics

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Cosmetic product testing includes:

Assay determination by gas chromatography (GC) and high performance liquid chromatography (HPLC) methods, for example:

  • testing for vitamins content, preservatives, dyes (HPLC)
  • testing for essential oils indentification and assay (GC)

according to developed and validated methods in the laboratory, and also according to existing ISO, for example:

ISO 11024-1: 1998 Essential oils — General guidance on chromatographic profiles — Part 1: Preparation of chromatographic profiles for presentation in standards

ISO 11024-2:  Essential oils — General guidance on chromatographic profiles — Part 2: Utilization of chromatographic profiles of samples of essential oils

Testing for:

  • Appearance
  • Odor
  • Acid number
  • pH
  • Water content
  • Colloidal stability
  • Thermostability

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