THE PRESENT INVENTION RELATES TO THE USE OF A WATER-IN- OIL (W/O) OR OIL-IN-WATER (O/W) EMULSION COMPOSED OF AN OILY PHASE COMPRISING ONE OR MORE OILS OF CRUDE OR REFINED VEGETABLE ORIGIN, AND AT LEAST ONE NON-IONIC AND/OR ANIONIC EMULSIFYING SURFACTANT, AND OF AN AQUEOUS PHASE, THE AQUEOUS PHASE COMPRISING AT LEAST ONE PHYLLOSILICATE, AS A PHYTOPHARMACEUTICAL ADJUVANT INTENDED TO BE MIXED WITH AT LEAST ONE PHYTOPHARMACEUTICAL ACTIVE AGENT OR AS A PHYTOPHARMACEUTICAL PRODUCT WITH MECHANICAL ACTION. THE PRESENT INVENTION ALSO RELATES TO A PHYTOPHARMACEUTICAL COMPOSITION COMPRISING AN ACTIVE AGENT AND ALSO A PHYTOPHARMACEUTICAL ADJUVANT AS DEFINED ABOVE, AND ALSO TO THE USE OF SAID COMPOSITION. FIGURE. (FIG. 1)