Quimicos en shampoos favorecen FFA

We reviewed 60 random hair-care products in a high street shop, and found that 60% of leave-on hair products and 51% of wash-off products (shampoos and condition- ers) contained a sunscreen chemical, most commonly benzophenone 4, benzyl salicylate (which is also used as a fragrance) and ethylhexyl methoxycinnamate.
In keeping with the theory that sunscreens are a cau- sative factor for FFA in predisposed patients, the presence of these sunscreen chemicals within hair-care products may explain why FFA often progresses to wider scalp involvement.


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Benjamin Hidalgo-Matlock
Skin Care Physicians of Costa Rica
Clinica Victoria en San Pedro: 2224-0654
Momentum Escazu: 2101-9574
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