| 摘要 |
The present invention provides that a method for preparing an emulsion or a dispersion composed of an oily phase and an aqueous phase by contacting the oily phase with the aqueous phase, the method comprising: injecting the oily phase, which contains a water-soluble organic solvent and at least one hydrophobic functional ingredient and in which the content of a surfactant is approximately 0.1% by mass or less based on the total mass of the oily phase, into the aqueous phase such that the Reynolds number of the oily phase immediately before contact with the aqueous phase is approximately 1,000 or more, and that foodstuffs, a skin external and a medicament which contain an emulsion or a dispersion prepared by the method described above.
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