What is the world's #2 Anti- Dandruff Shampoo? ?

What is the world's #2 Anti- Dandruff Shampoo?What is the world's #2 Anti- Dandruff Shampoo? ?
well, head and shoulders is probably one of the best, but I've found that selsun blue and nutragena T-gel work wonders as well.What is the world's #2 Anti- Dandruff Shampoo? ?
why not number 1 ... use head and shoulders or delson blue or what ever it was called