This invention relates to a preparation method of an external application liquid for skin, comprising: placing a plurality of grains in a container mixing a fermentation source with a plurality of grains placed in a container within a fermentation time, fermenting the plurality of grains and the fermentation source placed in a container at a relative temperature to become fermented grains adding the fermented grains into liquid to make the liquid include the fermented grains within a dissolution time, enabling the ingredients of the fermented grains to be dissolved in the liquid to make the liquid become fermented grain dissolution liquid extracting to make the fermented grains separated from the fermented grain dissolution liquid and become fermented grain dissolution liquid not containing grains placing the fermented grain dissolution liquid not containing grains in a container which is gas-permeable and free from liquid leakage and waiting for a volatilization time to enable some alcohols to volatilize and distilling to volatilize the secondary alcohols of the fermented grain dissolution liquid not containing grains which already has some alcohol volatilized, to make it become fermented grain dissolution liquid not containing grains and alcohol. With the aforementioned preparation method, an external application liquid rich in nutrients and without harmful substances can be obtained, so as to effectively providing nutrients to the skin.一種皮膚外敷用液的製法,其包含了:複數的穀物,置於容器內;發酵源,與該置於容器內複數穀物混合;發酵時間,使該置於容器內具有複數穀物與發酵源,在相對溫度下使其發酵,並成為發酵穀物;將該發酵穀物加入液體,使液體包含發酵穀物;溶出時間,使發酵穀物成份能溶出到液體中,使液體成發酵穀物溶出液;萃取,使發酵穀物與發酵穀物溶出液分離,使成不含穀物的發酵穀物溶出液;揮發,將不含穀物的發酵穀物溶出液,置於具有透氣與免液體滲漏容器中,並靜候一揮發時間,使部分醇類得以揮發;蒸餾,將部分醇類已揮發的不含穀物的發酵穀物溶出液,將其次醇類揮發,使其成為不含醇類的不含穀物的發酵穀物溶出液。藉由上述製法,可得到富含養分與無任何有害人體物質的皮膚外敷用液,使得皮膚外敷用液可有效的為皮膚給予給養。(1)...穀物(2)...容器(3)...發酵源(4)...發酵穀物(41)...含有部分已被轉化為乙醇的發酵穀物(5)...液體(6)...發酵穀物溶出液(61)...無穀物發酵穀物溶出液(62)...部分醇類已揮發的無穀物發酵穀物溶出液(63)...不含醇類不含穀物的發酵穀物溶出液
