Polyhydroxystearic Acid

 Polyhydroxystearic Acid
  • Polyhydroxystearic Acid is a natural ingredient commonly used in sunscreens

  • It is a soft wax that is pliable and used most commonly as a coating on oxide particles that give sun protection (this is known as a dispersant)

  • Made from castor oil,  is a natural wax

  • The reason that oxide particles need a coating/dispersant is to allow them to properly disperse throughout the tube and skin, as they have a tendency to stick together. If they stick together, this means that not all portions of the sunscreen will have the same effectiveness for sun protection

  • It increases the UV absorption of the sunscreen formula as well as to reduce the annoying white cast left behind by mineral sunscreens

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