This is my own experience which i want to share with you people. you people may try this fro result.
If your hair fall or they look like weak to you so the real method which is very fantastic and without to spend a cent of money. That method is to inhale more oxygen..
If you will inhale more oxygen so your hair fall will decrease, i have tested this method my self and that why share to you.. As God gift oxygen in free so there is no bound to get it more. From today take more oxygen with long and deep inhalation and see how your hair fall overcome..