| Coloring
There are many different reasons why people color their hair. Some wish to lighten or darken their current color, cover gray hair, or follow various fashion trends by coloring their hair with unusual colors.
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| Correcting hair problems
Hair problems can include hair loss, brittle or fine hair, oily hair, or dandruff. All hair problems are treated differently, but most remedies treat both the hair and scalp.
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| Permanent waves
There are various kinds of permanent waves that yield different results. Curly or spiral perms produce tight, spiral-shaped curls and usually looks best when the hair dries naturally or is dried with a diffuser.
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| Your hair type
The type of hair you have depends on how much oil, also called sebum, your sebaceous (sih-BAY-shus) glands produce. These glands open into each hair follicle, and their flow and distribution is influenced by the same factors that affect skin.
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