Nizoral Shampoo For Dandruff And Hair LossONLINE SHOPPING FOR PHYSICIAN PRESCRIBED SKIN CARE TREATMENTS AND MEDICATIONSdandruff shampoo that also cleanses the scalp and prevents hair loss. Nizoral also helps to block the conversion of testosterone to dihydrotestosteronedandruff shampoo that also cleanses the scalp and prevents hair loss. Nizoral also helps to block the conversion of testosterone to dihydrotestosterone (DHT). It is believed that DHT has a role in the hair follicle dying and falling out – and indeed, Nizoral does appear to prevent hair loss. Wet hair and scalp completely using water. Apply enough shampoo to produce sufficient lather to clean hair and scalp. Massage gently over entire scalp for approximately one minute. Rinse hair with warm water. Repeat this process only leave the shampoo on the scalp for 3 minutes. Dry hair thoroughly after the second rinse. Be sure to thoroughly rinse after use. The shampoo should be used twice weekly for 4 weeks with at least 3 days between each shampooing. It can then be used intermittently depending on the response of the condition. Avoid contact with the eyes.