It is intended to provide a substance having an action of promoting vitamin C transporter production. An agent for promoting vitamin C transporter production contains, as an active ingredient, a compound of marrubiin, cholesteryl benzoate, ugaferin, rapiferin, geranyl acetate, nerolidol, dihydrojasmone, carbacryl acetate, guaizulene, dihydroconiferyl alcohol, stevioside, DL-alpha pyrene, verbenalin, 1-heptacosanol, 4-hydroxycoumarin, cholic acid, cholesteryl oleate, fraxin or bergaptol, or an extract of Magnolia obovata, almond, Hydrangea macrophylla, grapefruit, Ophiopogon japonicus, Hedera helix L, Saponaria officinalis L., Houttuynia cordata, chamomile, Uncaria gambir, hamamelis, Morus alba, rice bran or field horsetail.
