Gaceta medica de Mexico · 2005
[Inconsistency in sun protection factor (SPF) index in Mexico. The case of sunscreens for oily skin].
Сравнительное исследованиеАннотация на английскомСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Castanedo-Cazares Juan Pablo, Torres-Alvarez Bertha, Briones-Estevis Selene, Moncada Benjamín
Аннотация
BACKGROUND: In Mexico, information regardiing sunscreen protection is not widely accessible from sources other than manufacturers.
OBJECTIVE: To assess the Sun Protection Factor (SPF) of 12, over the counter sunscreens for oily or acne-prone skin available in the Mexican market.
SETTING: Dermatology Department. Autonomous University of San Luis Potosí, Mexico.
SUBJECTS AND METHODS: Twenty healthy volunteers ofskin type III and IV were tested. Sunscreen SPFs were measured using solar simulated radiation according to FDA final monograph.
RESULTS: SPFs ranged between 7.8 and 26.9. Overall SPFs determined by solar simulator showed values between 22% to 74% less than the one advertised in their labels.
CONCLUSIONS: We warn about the potenital risk of SPF overestimation as many of'the sunscreens tested did not comply with their offered protection. A proper regulation is needed because sunscreens are considered cosmetic products and do not require clinical tests to verify their efficacy before marketing.
OBJECTIVE: To assess the Sun Protection Factor (SPF) of 12, over the counter sunscreens for oily or acne-prone skin available in the Mexican market.
SETTING: Dermatology Department. Autonomous University of San Luis Potosí, Mexico.
SUBJECTS AND METHODS: Twenty healthy volunteers ofskin type III and IV were tested. Sunscreen SPFs were measured using solar simulated radiation according to FDA final monograph.
RESULTS: SPFs ranged between 7.8 and 26.9. Overall SPFs determined by solar simulator showed values between 22% to 74% less than the one advertised in their labels.
CONCLUSIONS: We warn about the potenital risk of SPF overestimation as many of'the sunscreens tested did not comply with their offered protection. A proper regulation is needed because sunscreens are considered cosmetic products and do not require clinical tests to verify their efficacy before marketing.