Hello. I will ask the more competent ones to get involved in the topic. I have been going to the solarium for years, mainly in the spring and summer. I've never had a problem. I started this season as well, but hours after the solarium I get a huge urticaria the size of a walnut on the pelvic bones. Drink Tritico and 12 mg. Beta Carotene daily. I doubt that Tritico will affect photosensitivity in any way, but I am not aware of its pharmacological properties.