1978 年 27 巻 3 号 p. 169
The anti-dandruff and anti-itching effects of zinc pyrithione were investigated in the clinical study in connection with the residual amount of the agent on the hair.
The dandruff and the itch decreased significantly by using a zinc pyrithione-containing hair rinse.
The residual amount of zinc pyrithione on the hair rose with the increase of the content in a hair rinse. The more the agent remained, the more the antidandruff and anti-itching effects were found.
The fact that the shampoo containing 1% of zinc pyrithione had the effects equivalent to the hair rinse containing 0.3% was relevant to its residual amount on hair.