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5 votes
2 answers
307 views

Why does dandruff shampoo loose effectiveness without shampoo alternation?

I've heard often 1 2 that alternation between anti-dandruff shampoos containing ketoconazole, zinc pyrithione, coal tar, selenium disulfide or salicylic acid is needed for the treatment to stay ...
Bob Ortiz's user avatar
  • 1,059
3 votes
1 answer
232 views

What is the mechanism of action of Alphosol dandruff treatment?

For around two years I have been using Alphosol 2 in 1, which is a coal tar extract based shampoo, to treat my dandruff which I believe is caused mostly by my Psoriasis. Each application would leave ...
Terry's user avatar
  • 513