Inducing fibroblast proliferation

An agent for growing fibroblasts contains a yeast extract and an extract of safflower as effective components, wherein the fibroblasts are aged fibroblasts, the extract safflower is an extract by solvent flower safflower yeast extract is an extract prepared from a yeast that has been grown in a nutrient culture medium containing glycosaminoglycan and has been subjected to processing by irradiation with ultraviolet light and / or processing with hydrogen peroxide in the amount of the extract yeast is in the range from 0.005% to 1% by mass and the amount of safflower extract is in the range of 0.01% to 1% by mass.