A hair care series based on scalp skincare principles, utilizing the blessings of domestically grown plants to lead to beautiful hair from the scalp. This medicated treatment focuses on the skin's barrier function, based on skincare principles. Formulated with scalp skincare ingredients and plant-derived active ingredients, it gently cleanses the scalp with daily hair care while improving the scalp environment, leading to a moisturized scalp and smooth, shiny hair. Contains plant-derived ceramides and domestically produced yeast extract. It replenishes moisture to the scalp, which is prone to fluctuations due to dryness and external stimuli, and moisturizes both hair and scalp. It conditions hair that tends to be dry and damaged, making it soft and manageable, leading to glossy, dewy hair that holds moisture. Furthermore, 16 types of domestically produced plant-derived moisturizing ingredients, such as camellia seed oil, moisturize the hair and scalp, resulting in hair that is smooth to the touch. No synthetic fragrances are used; it is a natural essential oil blend based on Damask rose from Kumamoto Prefecture. The light and elegant rose scent gently spreads, creating a pleasant hair care time. <Ingredients not used> Sulfate-based cleansing agents, mineral oil, silicone, parabens, synthetic fragrances, synthetic colorants, animal-derived ingredients <Effects and Benefits> Keeps hair and scalp healthy. Makes hair supple. Replenishes and retains moisture and oil in the hair. Prevents split ends, breakage, and frizz. *This product is a refill, so the bottle is not included. (Quasi-drug) Product name: RinRen Medicated Treatment RT