Article: One percent PTZ shampoo increases hair density

OTC antidandruff shampoo shown not to adversely affect hair loss in men with androgenetic alopecia

New Orleans - Regular use of a commercially available antidandruff shampoo containing 1 percent pyrithione zinc (PTZ) does not adversely affect hair loss in men with androgenetic alopecia and may in fact slow its progression or result in improvement, according to the results of a prospective, randomized, controlled investigation.

The Procter & Gamble-supported trial was conducted at two investigational sites and randomized 200 men with androgenetic alopecia equally into four groups: 1) 1 percent PTZ shampoo; 2) placebo shampoo; 3) 5 percent minoxidil solution plus placebo shampoo; or 4) ...