However, it has a negative effect on head hair growth ... 30 million women in the U.S. suffer from AGA. How Do Prescription DHT Shampoos Work? Because high levels of androgen hormones can cause ...

Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...