canada
You may want to try a natural shampoo called "Earthly Delights", available in Wholefood store for about USD 14. I have been loosing hair for the past 8 months and it started only on my right side, however now it progressed to the top, and a little on the left side as well. I was diagnosed with low iron, however, the iron supplements do not seem to be helping much. The above ahampoo is very good, and you will notice less hair in the shower after a few washings.