Sunscreen Formulation and Testing
By: Michael Caswell, PhD, C.B. Fleet and Central Virginia COmmunity CollegeC
Posted: May 6, 2003, from the September 2001 issue of Cosmetics & Toiletries.
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8 pages available as a PDF download or printed copies mailed to you
Article Keywords:
- sunscreen
- SPF testing
- sunscreen actives
- sunscreen active solvents
- sunscreen water resistance testing
- sunscreen emulsifiers
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Sunscreen formulation is both an art and a science. Sunscreens appear to be simply an emulsions system with sunscreen actives included in the formulation. However, this is far from reality. Even a formulator experiences in the development of emulsion systems will experience a myriad of difficulties during sunscreen formulation. This review will be successful if the reader understands that sunscreen formulation is complex and is best left to the experienced artist.
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