<;P>;PROBLEM TO BE SOLVED: To obtain a safe skin fibroblast growth promoter that is useful for wrinkle measure regarded to be largest worries with respect to beautification, increases water holding property and keeps skin firmness and moisture, a skin care food and beverage and a skin care cosmetic containing the skin fibroblast growth promoter. <;P>;SOLUTION: The skin fibroblast growth promoter comprises an extract of a fermented substance, obtained by fermenting dried leaves of Alpinia speciosa with mixed bacteria of Lactobacillus plantrum, Streptococcus thermophilus and Bacillus subtilis, with hot water or 80% ethanol or the freeze-dried substance of them as an active ingredient. <;P>;COPYRIGHT: (C)2007,JPO&INPIT