The laboratory

Quality control
Fair trade
Our quality control laboratory follows Good Laboratory Practices (GLP). All the raw materials and all end products are analysed in the control laboratory in accordance with the internal analytical procedures prepared by our Quality Chemist and validated by our Pharmaceutical Manager. These internal procedures were prepared in accordance with the European Pharmacopoeia and with ISO and AFNOR standards.
Triple tests (3 samples taken from the same batch) are used to analyse all the batches of raw materials in the laboratory:
  1. All the batches are kept in a quarantine zone on delivery and the compliance of the label information (botanical name, origin, distilled part...) are checked.
  2. Triple sampling is performed following a well established procedure (from the bottom, middle and surface of the tank)
  3. Organoleptic tests (colour, aroma, flavour) are performed against a very high quality standard that we meticulously respect.
  4. A battery of physical-chemical tests are conducted: density, solubility in alcohol, refraction index, acid index, peroxide index…
  5. Gas phase chromatography (GPC) is used to analyse them in order to obtain the chromatogram, the true sample identity card: this chromatography allows the essential oil to be identified and to check that nothing has been added or removed (fakes), but also checks that the raw material is intact, unaltered (good manufacturing and storage conditions).
  6. All the results are then compared to those specified in our internal procedures.
  7. In the case of results non-compliance, the batch is withdrawn.
  8. If the results of the 3 tests are compliant and validated by our Quality Chemist, the batch is released.
  9. It is allocated an internal batch number, the batch is labelled and a sample is taken. It is then filed in the sample library and kept for one year after the use by date of the batch. A database has thus been set up and guarantees the traceability of all our oils.
  10. The batch is then repackaged to ensure optimum shelf life and then enters the production circuit.