abstract |
The present invention provides an active ingredient that is derived from a natural product excellent in biological safety and promotes vitamin C uptake into cells. [Solution] A lactic acid bacterium, yeast, koji mold or Bacillus subtilis fermented product of a lotus plant or an extract thereof; a hydrolyzate of a grass plant or an extract thereof; And vitamin C uptake promoter containing any one or more of hydrolyzate of soybean or its extract as an active ingredient, and a skin external preparation or oral composition containing these agents. [Effect] The fermented product, hydrolyzate and extract promote the synthesis of “vitamin C transporter (SCVT)” which is a vitamin C channel involved in the uptake of vitamin C into cells. As a result, the combined use with vitamin C as an active ingredient for whitening or antioxidant increases the uptake into pigment cells. [Selection figure] None |