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Sodium Lauryl Sulfate

Rob (PHH)

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Sodium lauryl sulfate (SLS) is a widely used surfactant in various products, including personal care items, soaps, and household cleaners. As a surfactant, it lowers the surface tension between ingredients, allowing water and oil to combine, which is why it is used as a cleansing and foaming agent.

Key insights:

  • There is no evidence to suggest that SLS can improve hair loss outcomes.
  • Some sources suggest that products containing high concentrations of SLS are linked to weakening hair, subsequently causing hair loss. However, there is no published evidence to support this.
  • If you have a sensitive scalp, it may be worth avoiding products containing SLS due to their potentially irritant and hair-weakening properties.
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