Question: what is the strongest over the counter dandruff shampoo?
Answer: Neutrogena T/Gel. Use for: This medicated shampoo from Neutrogena contains 0.5 percent coal tar. ... 
Nizoral A-D. ... 
Jason Dandruff Relief. ... 
Head & Shoulders, clinical strength. ... 
L'Oreal Paris EverFresh, sulfate-free.