20 Causes of Hair Loss

Too much vitamin A

admin 2017.05.12 22:04 Views : 46

Too much vitamin A

 

Overdoing vitamin A-containing supplements or medications can trigger hair loss, according to the American Academy of Dermatology. The Daily Value for vitamin A is 5,000 International Units (IU) per day for adults and kids over age 4; supplements can contain 2,500 to 10,000 IU.