The present invention relates to a self-preserved oil dispersion. Especially, the present invention relates to a self-preserved oil dispersion including a dispersed oil phase, an aqueous phase and at least one surfactant, wherein said oil dispersion comprises boric acid in an amount ranging from 0.005% to 0.075% in weight of the total weight of the oil dispersion, said amount of boric acid being a preservative effective amount so that the oil dispersion has a preservative activity.本發明涉及一種自我防腐型油分散液。特別地,本發明涉及一種包含分散油相、水相和至少一種表面活性劑的自我防腐型油分散液,其中所述油分散液包含硼酸,所述硼酸的量以所述油分散液的總重量計在0.005重量%到0.075重量%的範圍內,所述硼酸的量是防腐有效量,因此所述油分散液具有防腐活性。
