Research by ミルボン has indicated that the amount of calcium ions in water may affect the results of hair washing. The article outlines the experimental results and identifies water quality as a factor related to the feel and finish of the hair.
Research by ミルボン has been reported to suggest that calcium ions in water may affect the results of hair washing. The report indicates that water quality should be considered as a factor related to the feel and finish of the hair.
Although the article does not provide specific figures or conditions, it draws attention to the possibility that the presence of Ca ions may affect the condition of the hair after washing.