My scalp is really dry I have a lot of dandruff

Anonymous
What can I do to improve my hair health?is there a special shampoo I can use?

Ive tried using shamppos that say they will get rid of dandruff but they don't work for me.ive tried washing my hair less I'm down to about once or twicr a week and nothing works please help me
My scalp is really dry I have a lot of dandruff
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