Xcellerate 35 Generally, all men and women wish to have strong, smooth and silky hair. But not everybody gets it. And that is because of "hair loss". Each hair grows approximately 1 centimeter per month. And the normal cycle of hair growth lasts for 2 to 6 years. Losing some hair each day as part of this cycle is just normal. However, other people experience hair loss which can affect men, women and even children physically and emotionally.