SUNBLOCK VS SUNSCREEN

Difference Between SB & SS

Sunblock = Physical sunscreen

deflects and scatters UV radiation

protects against UVB and UVA

example : Titanium dioxide, zinc oxide

suitable for sensitive skin

Sunscreen = Chemical sunscreen

absorbs UV radiation

protects against UVB and also UVA (newer agents)

example : Benzophenones, avobenzones

may cause contact allergy in certain individuals

OUT IN THE SUN

SPF measures how many times longer b4 the sunscreen-protected skin becomes red after exposure to UVB , compared to unprotected skin.

IF APPLIED APPROPRIATELY:

SPF15 blocks 92.5 % of UVB and is adequate for use on normal skin.

SPF30 blocks 97 % of UVB and is for photosensitive skin, skin cancer patients and people at higher risk of skincancer. 

                                                                                                                                                                                   



~google images~

-Wearing a sunscreen is particularly important in completely exposed areas like the beach-

p/s: maklumat drp suratkhabar baru...huhu

pakai SB je tak penah lg pakai SS..;)