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Chemical analysis and in vitro   UV ‐protection characteristics of clays traditionally used for sun protection in S outh A frica
Author(s) -
Dlova Ncoza C.,
Nevondo Funanani T.,
Mwangi Elizabeth M.,
Summers Beverley,
TsokaGwegweni Joyce,
Martincigh Bice S.,
Mulholland Dulcie A.
Publication year - 2013
Publication title -
photodermatology, photoimmunology and photomedicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.736
H-Index - 60
eISSN - 1600-0781
pISSN - 0905-4383
DOI - 10.1111/phpp.12042
Subject(s) - sun protection , in vitro , sun protection factor , food science , chemistry , biochemistry , medicine , environmental health , dermatology
Summary Clays have been used in southern A frica as photoprotectants by the indigenous people. Typically, two types of clay are used: one white in colour and the other red. In this work, the two clays were identified and characterized, and their in vitro   SPF values measured. The clays afford a low SPF but offer broad‐spectrum protection. No cutaneous side effects from the use of these clays are known. Further consideration should be given to the potential use of clays in sunscreen preparations.

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