Preclinical studies of anti-stress properties of the Siberian fir extract (cell juice) were carried out in the Research Institute of Hygiene (Novosibirsk).
A model of immobilization stress was experimentally created in the test animals. It was found that the fir extract exerts a protective effect on internal organs (thymus, spleen, adrenal glands, the mucous membrane of the stomach) of mice, that suffer in the stress reaction. This reduces the stress depth by 6-7 points. The extract normalizes the reduced content of blood leukocytes, that is characteristic of deep stress.