Previous research using the Theory of Planned Behaviour (TPB) for predicting skin cancer-related health behaviours has not adequately incorporated empirical advances in the conceptualization of the perceived behavioural control (PBC) component of the theory. This study examined the role of self-efficacy and controllability for predicting sunscreen and sunbed use intentions. Five hundred and nin...

BACKGROUND AND OBJECTIVE The goal of this study was to evaluate various creams for their capability to protect photosensitized skin from visible light. STUDY DESIGN/MATERIALS AND METHODS Two cover creams and creams containing various combinations of Vaseline with TiO(2), ZnO, and Fe(2)O(3) were used to measure the reduced light transmission and the light absorption spectrum. In vitro and in v...

The sun protection factor (SPF) of sunscreens is determined by a testing protocol that specifies a sunscreen application rate of 2 mg/cm(2) on the skin. Most people, for cosmetic and economic reasons, only apply enough sunscreen to achieve an SPF of about a third or even a quarter of the level stated on the product. To increase public awareness of the problem, manufacturers could be required to...

BACKGROUND In Denmark, the incidence of melanoma has been increasing since the 1960s. Intermittent exposure to ultraviolet radiation and a history of sunburn and sunbed use are known risk factors. We describe the association between use of protective measures, sun-related behaviour and experience of sunburn in the Danish population three months after the start of the campaign. METHOD A popula...

BACKGROUND Application of aminolevulinic acid (ALA) for photodynamic therapy induces significant sensitivity to visible light. OBJECTIVE To determine whether sunscreens containing inorganic agents are effective against sensitivity to blue light induced by ALA application. METHODS & MATERIALS Twenty subjects received application of ALA on the arm. Thirty minutes before blue light exposure, t...

The relationship between exposure to ultraviolet (UV) radiation and skin cancer urges the need for extra photoprotection, which is presently provided by widespread commercially available sunscreen lotions. Apart from having a large absorption cross section in the UVA and UVB regions of the electromagnetic spectrum, the chemical absorbers in these photoprotective products should also be able to ...