Soak your daughter’s hair before entering the sea or pool. So, when swimming, her hair will not absorb chlorine or salt water. The sun’s rays damage the hair’s proteins. To prevent this, use products containing keratin, which are deep-healing effects. With this deep-healing treatment, hair will survive that damage in a week. Peroxide, alcohol and lemon products combine with the sun to accelerate the drying of your hair. Olive oil sprays, gels and other products can interact with the heat and create a dangerous situation. Try using such products in your daughter’s hair when they sleep at night, or at times when they will not be out in the sun for a long time.