 [ Symptoms ] what vitamin can i use to prevent hair loss  i lose lots of hair while i wash and brushing my hair nothing has been changed in my diet and or in my daily regimen  i did travel internationally for a month in july thru aug i am 45 yrs of age female i did take all the precautions i e vitamins required shots and malaria pills  please help [ Disease ] at age of 45 hair loss can be due to thyroid problem or as a consequences of calcium loss during menopausal transition vitamin supplement with vitamin b complex vitamin d calcium and phytoestrogen combination can help to reduce hair fall