The effects of a shampoo containing zinc pyrithione on the control of dandruff

@article{Marks1985TheEO,
  title={The effects of a shampoo containing zinc pyrithione on the control of dandruff},
  author={Ronald Marks and Anthony Dalton Pearse and Arthur P. Walker},
  journal={British Journal of Dermatology},
  year={1985},
  volume={112}
}
Thirty‐two subjects who suffered from dandruff participated in a study in which one‐half of the head was washed with a shampoo containing 1% zinc pyrithione (ZPT) and the other half was washed with the same shampoo without ZPT. Four groups, eight subjects per group, were shampooed one, three, six or nine times (shampoo frequency twice per week). Clinical dandruff gradings of each half of the head were made 4 days after the last shampoo in each group, when scalp biopsy samples were also taken… 
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