A recent multicenter prospective study in the UK and the
Netherlands tested 1155 patients to 11 established organic
sunscreen agents and 1 commercial sunscreen applied “as is,”4
including test allergens recommended by the British Photodermatology
Group (Table 2) and the common UV absorbers
used across Europe. The study identified that 4.4% of tested
patients had sole photoallergic contact dermatitis, 5.5% had
allergic contact dermatitis, and 1.3% had concomitant
photoallergic and allergic contact dermatitis to sunscreen
chemicals. Multiple photoallergies, in addition, were observed
in some individuals.4 The most common was benzophenone
3, followed by butylmethoxydibenzoylmethane. A newly
emerging photoallergen—octyl triazone (also known as
A recent multicenter prospective study in the UK and the
Netherlands tested 1155 patients to 11 established organic
sunscreen agents and 1 commercial sunscreen applied “as is,”4
including test allergens recommended by the British Photodermatology
Group (Table 2) and the common UV absorbers
used across Europe. The study identified that 4.4% of tested
patients had sole photoallergic contact dermatitis, 5.5% had
allergic contact dermatitis, and 1.3% had concomitant
photoallergic and allergic contact dermatitis to sunscreen
chemicals. Multiple photoallergies, in addition, were observed
in some individuals.4 The most common was benzophenone
3, followed by butylmethoxydibenzoylmethane. A newly
emerging photoallergen—octyl triazone (also known as
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