A recent UK scientific study on the efficacy of sun
creams says that although they help prevent sunburn,
lotions fail to block out the harmful ultraviolet rays
which can cause the skin cancer. Sun block could give sun
worshippers a false sense of security.
Burns specialist Professor Roy Sanders said that the
only way to really protect the skin is to stay in the shade
at the hottest times of the day or cover up with hats and
T-shirts.
According to Professor Sanders, one in 68 of the present
UK adult population will be diagnosed with malignant
melanoma – the most dangerous form of skin cancer – at some
point in their life. By 2010, however, that figure will
have risen to one in 50.
Skin cancer can be caused by two types of ultraviolet
light, the short, energetic wavelengths of light in the
sun’s rays. UVA penetrates the skin most deeply and can
suppress the immune system and damage cells. UVB also
damages skin cells. The ‘factor’ rating on a bottle of sun
block refers to the level of protection against UVB,
historically considered the greater danger. A little-known
one to four star system – normally printed on the back of
bottles – indicates the level of protection against
UVA.