“Yoshida Shirasu” is made from which was volcanic ashes by huge eruption the
volcano (The Aira caldera, Kagoshima in Japan) as we did not know 300000 to
800000 years ago, which laid thick impurities are removed by being exposed to
longtime screened by a warter curren, and so pure minerals ingredient stays, and
was refined by nature.
As for other volcanic ashes more than 50μ are most about the particle size, but
Yoshida Shirasu ‘s particles are very particular from several μ to 40μ, and a color is
pure white. In addition, Volcanic ashes are registered with ICID(International Cosmetic
Ingredient Dictionary and Handbook).
Yoshida Shirasu’s composition : SiO2/ Ai2O3/ K2O/ Na2O/ CaO/ Fe2O3/ MgO/ TiO2
Nature Cray such as Yellow-ocher or the Kaolin is used as matrix of the packs well
conventionally. Those Cray adsorbs unnecessary sebum and a dirt of skin and pore,
and remove them. In addition, they perform supply to the skin cell of the mineral
ingredient. “Yoshida Shirasu” is superior in adsorption for the oil in comparison with
conventional Cray. It is superior in the adsorption of the dirt by the ion exchange in
particular. |