PROBLEM TO BE SOLVED: To explore a substance that promotes the production of a growth factor by a stem cell, and provide the substance as a skin external composition for prevention, improvement or treatment of skin disorder or damage, or obesity or the like.SOLUTION: A stem cell-derived growth factor production promoter comprises extracts of at least one Rosaceae Rosa plant selected from Rosa gallica officinalis, Rosa damascena, and Rosa multiflora as an active ingredient.