DERMAL ABSORPTION STUDIES

Study of absorption and/or metabolism processes after topical application onto the skin according international regulations:

  • Using in vitro models such as Franz cells,
  • Finite or infinite dose,
  • Occlusive or non occlusive system

IN-VITRO METABOLISM

To determinate metabolic or enzymatic activity induced by a new active ingredient:

  • Metabolism enzymatic identification,
  • Induction/ inhibition studies,
  • In vitro and in vivo metabolic profile,
  • Microsomes and hepatocytes.

ANALYTICAL METHODS

To quantify accurately active ingredients or metabolites in all the substrates and compartments generated, the extraction procedures and analytical methods used are fully validated.

  • Quantification of radiolabelled entities by liquid scintillation counting,
  • Quantification of non radiolabelled entities by various chromatography techniques, mainly LC/MS-MS.