To remove leftover bleach or sea salt, simply rinse your hair with the contents of a large bottle of sparkling water. Then you can immediately use a repair balm: wash your hair with shampoo, for example, every other day.
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By the way, carbonic acid is sometimes added to shampoo compositions – just to achieve an additional cleansing effect. Carbon dioxide helps improve hair growth and reduces sebum production, which also prolongs the feeling of cleanliness.