The loss of hair (alopecia) is a natural phenomenon in all hair-baring animals that normally occurs during the hair growth cycle. It is estimated that most individuals (assuming they have a full head of hair) lose about 100 scalp hairs over a 24-hour period. Hair loss can become a cosmetic problem when it occurs in the wrong place at the wrong time in the wrong individual. True hair loss should be distinguished from damage to the hair shaft, which may cause breakage close to the scalp. This sort of damage is often caused by exogenous chemicals used to alter the physical characteristics of the hair shaft (hair dye, etc.) or other forms of self-manipulation. https://ipsnews.net/business/2020/09/11/zenith-labs-hair-revital-x-reviews-shocking-review-real-customer-revealed/