Nizoral

Users say that Nizoral is more effective than Head & Shoulders (*Est. $8 for 23.7 oz.) when it comes to fighting flakes but that it can also dry out hair more. Most reviewers say that following up with a conditioner makes the effects more tolerable. (Experts warn, however, that conditioner should only be used on the ends of hair in order to avoid exacerbating the dandruff.) Nizoral contains ketoconazole, a more powerful antifungal ingredient that was once available by prescription only. Users claim to see results after just two to three treatments. Experts say that Nizoral should only be used two to three times per week, alternating with a standard shampoo like Garnier Fructis Fortifying Daily Care (*Est. $4 for 13 oz.). Once dandruff has been cleared up, experts suggest using Nizoral on an as-needed basis.

Paula Begoun's book "Don't Go Shopping For Hair-Care Products Without Me" provides a thorough review of Nizoral, as well as a plethora of useful information regarding dandruff in general. User reviews at Drugstore.com and MakeupAlley.com also show great customer satisfaction.