The purpose of the study was to prepare a stable multiple emulsion system containing two skin antiaging agents using a natural oil vitamin C, known to be a very unstable ingredient and is decomposed in the presence of oxygen, was entrapped in the internal aqueous phase of w/o/w multiple emulsion. In this way, vitamin C is expected to exhibit slow release and the effect of vitamin C can be improved as it has been protected from the external environment. The other ingredient, which is a product of wheat protein was also used as an antiaging agent. Both of the ingredients increase the synthesis of collagen fibers in the dermis. Therefore, a synergystic effect can be produced by using the two ingredients in one formulation.