1 Topical photoprotective agents
a) Chemical or organic filters
b) Physical or inorganic filters
c) Antioxidants
i) Carotenoids
ii) Polyphenols
(1) Flavonoids
(2) Resveratrol
(3) Hydroxycinnamic acids
(4) Green tea extract
(5) Polypodium leucotomos extract
(6) Pomegranate extract
iii) Other substances
(1) Broccoli extract
(2) Caffeine
(3) Polygonum multiflorum thunb root
d) DNA repair agents
i) Liposome-encapsulated T4 Endonuclease V
ii) Photolyase
iii) Oxoguanine glycosylase enzyme
iv) Thymidine oligonucleotides
e) Cyclooxygenase-2 inhibitors
f) Iron chelators
g) Osmolytes
h) Other agents