TYPES
OF SUNSCREEN
Sunscreens
are used primarily to prevent sunburn, but they also play an important role
against skin cancer.
2 types of sunscreen available
·
Physical
Blockers- Sunscreens that are physical blockers( titanium dioxide
and zinc oxide)
work by reflecting UV radiation.
Physical blockers are effective against both UVA and UVB radiation. They are
made of internal metals that
sit on the skin and are not absorbed.
Physical blockers do not wear off as quickly as chemical blockers, but
they are more susceptible to washing off the skin from water or sweating.
·
Chemical
Blockers- Sunscreens that are chemical blockers absorb UV
radiation within a specific wavelength. The benzophenones (oxybenzone,
sulisobenzone, dioxybenzone), menthyl anthranilate, and avobenzone are chemical
blockers that protect against both UVA and UVB radiation.
Look for these when selecting
a sunscreen.
ADMINISTRATION
GUIDELINES
1.
Sunscreens
should be applied evenly and liberally to all exposed areas of the skin. Apply 30 minutes prior to exposure
to the sun.
2.
One ounce of
sunscreen is
considered to be adequate to cover all exposed areas
3.
Reapply
every 2 hours and after swimming, excessive sweating or towel drying.