One of the best ways to distinguish dry hair from dehydrated hair is to explore what causes dehydrated hair. The main culprit for dehydrated hair is none other than a lack of water. Without proper hydration, your strands won’t be able to retain any moisture.
On the flip side, dry hair comes with its own share of causes. Everything from excessive exposure to chemicals in relaxers, hair dyes, and other hairstyling products can cause dryness as they strip away your hair’s natural oils. Failing to wash chlorine out of your hair and using heat styling products consistently can also cause dry hair to occur. Ultimately dehydrated hair needs water or moisture, and dry hair needs oil.