Additional UVProtective Chemicals

Further compounds are included in sunscreens to exert their effects in different ways than mere absorption and scattering of UV radiation. Since knowledge of the mole-

Table 25.2. Sunscreen Filters

UVB chemical sunscreens

Aminobenzoates p-Aminobenzoic acid (PABA) Amyl dimethyl PABA Glyceryl PABA 2-ethylhexyl PABA Cinnamates

2-ethoxyethyl p-methoxycinnamate (Parsol) Diethanolamine p-methoxycinnamate Salicylates Octyl salicylate Trolamine salicylate 2-ethylhexyl salicylate Homomenthyl salicylate Triethanolamine salicylate Miscellaneous Digalloyl trioleate Lawsone with dihydroxyacetone Glyceryl aminobenzoate

UVA chemical suncreens

Benzophenones Oxybenzone Sulisobenzone Dioxybenzone Miscellaneous Menthyl anthralinate Eusolex 2020

Dibenzoyl methane (Parsol 1789, Avobenzone)

UVB and UVA physical sunblocks

Kaolin

Magnesium silicate

Magnesium oxide

Red veterinary petrolatum

Titanium dioxide

Iron oxide

Zinc oxide cular events of UV damage is increasing rapidly, a variety of different compounds that may interfere with these events are likely to be used increasingly in sunscreens.

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