When dyeing hair, strong chemicals are needed, which can remove the natural moisture of the hair, causing damage to the hair's protective cuticle and leading to dry, dry hair.
To restore your hair, you can apply some of the following tips.
Use a shampoo and specialized conditioner for dyed hair
After dyeing your hair, choose specialized products for dyed hair that do not contain sulfates because this is a substance that can cause hair to fade quickly and make hair dryer. Using shampoo for hair dyeing will help keep hair longer and provide the necessary moisture to your hair.
Use a hair mask to moisturize

To deeply moisturize your hair, use a hair mask 1-2 times a week to help recover hair strands from deep inside. You can use natural masks with ingredients such as coconut oil, olive oil, ...
Limit the style to too much heat
After dyeing, hair will be weaker than the original hair, so using a hair curler and strainer to style can cause hair to become more and more damaged. If necessary, use a heat spray and keep the device at a low temperature to minimize damage to the hair.
Regularly trimming hair roots
Hair strands are the part that is most prone to dryness and split ends, so if you want your hair to become healthy and recover faster, you should trim it about every 2 months.