[Molecular photobiology].

  title={[Molecular photobiology].},
  author={Arjen F. Nikkels and C Pi{\'e}rard-franchimont and G E Pi{\'e}rard},
  journal={Revue medicale de Liege},
  volume={60 Suppl 1},
Photochemical reactions are numerous in the skin. They generate reactive oxygen species and other biochemical alterations as well. According to their nature, the molecular components of the skin which have been altered by these mechanisms can be repaired with various degrees of efficacy.