Don’t you wish you had shiny hair all the time? This is a timeless desire.
So what are the causes of dryness?

Winter damage and environmental changes
Damage caused by ultraviolet rays and heating
Chemical damage
Excessive use of a hair dryer
Changes in hormonal balance

Hair can dry out for various reasons.
The first thing you should do is adjust your shampoo and treatment to the season and the cause of dryness. During dry periods, switch to something moisturizing. Ultraviolet rays in summer. Chemical repair for chemical damage.
If your hair is dry and prone to collecting static electricity, you should switch to a highly moisturizing product. Amino acid-based products that protect hair from friction are also recommended.