As the long-term effects of sun exposure have beco me widely recognised, the use of effective sun protection products has increased dramatically. Sun care is one of fastest growing sectors in the personal care industry today. There are an increasing number of sun protection products on the market and UV protection has even become part of people’s daily skincare regime as they become more aware of the damaging effects of the sun.
Although the sun does emit electromagnetic radiation across the spectrum, from radio frequencies to gamma rays (Figure 1), most of its radiation has wavelengths in the region from infrared (IR) through visible light to ultraviolet (UV). It is the ultraviolet region of the radiation spectrum that causes damage to the skin.
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