PURPOSE: To obtain a bathing agent, improved in humectant effects and capable of providing glossy skin touch and keeping beautifying function by blending hyaluronic acid with other ingredients.

CONSTITUTION: A bathing agent obtained by preparing an aqueous solution of, e.g., sodium hyaluronate having 100000-2000000 molecular weight, blended in 10g/l concentration, mixing and using 100ml resultant solution in 400l hot water or mixing and dissolving 1g powdery hyaluronic acid in 400l hot water. The sodium hyaluronate is obtained by extracting from a cockscomb or fermentation and production from starch using streptococci of the genus Streptococcus. The hyaluronic acid is mixed and used in hot water during bathing to cover the keratinous layer of the skin with the hyaluronic acid holding water. Thereby, systemic humectant effects are provided.