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When the hair completes its life cycle, it is released from the scalp to give way to a new, younger and healthier hair. In many cases this last part of the process may not be fulfilled and thus the absence of hair becomes visible and annoying.

In men over 40 years old it can be seen in 50% of the population. In 30-year-old men the percentage is reduced by 20%.

An average loss of 50-100 hairs a day is considered normal.

This hair loss corresponds to a normal physiological process of the hair's biological cycle, where 10-15% of our hair is in the telogen phase

Daily hair loss varies from person to person, since it is proportional to the number of hairs and the duration of the anagen phase.

Hair loss becomes visible when it exceeds 50%.

On average one person has 90 000 to 150 000 hairs on the whole head, with a daily loss of 100 hairs/day.

The anagen phase lasts about 3-7 years depending on ethnic background and the individual. Within that period the total change of the follicular cycle (hair) will occur in a random way.


Intense, temporary or permanent hair loss can happen due to several factors:

  • Chemotherapy
  • Trauma
  • Radiation
  • Surgery
  • Medication (diverse drugs)
  • Heredity (Androgenetic alopecia, which is the most frequent)
  • Chemicals (due to exhibition)
  • Nutritional disorders
  • Hormonal disorders (thyroid or androgenic diseases)
  • Localised and systemic diseases