Cosmetic composition for improving scalp containing microbial fermentation product as active ingredient, and method for producing the same

A method for producing a cosmetic composition for improving the scalp, comprising:

• step (a) of preparing a culture medium containing peptone, yeast, and a carbon source;
• step (b) of producing a microbial fermentation product by culturing at least one of Lactococcus lactis, Limosilactobacillus reuteri, Saccharomyces cerevisiae, and Lactiplantibacillus plantarum in the culture medium;
• and
• step (c) of mixing the culture medium and the microbial fermentation product, followed by culturing.