The interactions between the sun and the skin have both beneficial and harmful aspects. While the sun provides important positive effects, there are also serious harmful consequences to consider, particularly from ultraviolet radiation, commonly referred to as UV-A and UV-B. To mitigate these harmful effects, the topical application of sunscreens and the avoidance of extreme sun exposure are widely recognized as the most effective strategies to prevent sunburn and skin edema. Additionally, this approach can efficiently reduce the risk of developing skin cancer.
The primary aim of sunscreen products is to minimize the damage caused by sun exposure while maintaining good skin tolerability. This includes avoiding safety issues and ensuring the products have pleasant sensory properties. Sunscreens are substances that can either reflect or absorb UV radiation to varying degrees, playing a key role in skin protection. They enhance the level of primary photoprotection against UV rays by absorbing radiation energy. As a result, their molecules enter an excited state and then release energy in other forms, such as vibrational, rotational, or infrared radiation, to return to their ground state.
Keywords: Sunburn Protection Factor; formulation; filters stability; nanoparticles.
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