Currently, there is insufficient evidence to establish the clinical utility of the genetic panels listed in the Medical Policy Criteria; therefore, these tests are considered investigational. Additional research is needed to demonstrate the clinical utility of simultaneous testing for all components of each panel test.
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Sodium chloride, better known as table salt, is used as a thickener in shampoos and conditioners containing sodium lauryl sulfate. It's a contributing factor to the eye irritation experienced with most shampoos, and it may also cause dry and itchy scalp. It may also cause hair loss.