Sun-rays burn and tear hair during summer months. It needs special protection because we can't stop the Sun's harmful influence.
Sun protection and water-resistant cosmetics form a protective screen that prevents drying from heat, sea salt and chlorine in pools.
During the summer you should forget about strong alkali shampoos. Replace them with natural products with no alcohol. In your luggage you should also pack an after-sun shampoo that most good companies offer. It washes without damaging the hair, doesn't irritate the scalp, moisturizes and adds shine to the hair.