ANTIAGING SKIN CARE
Ultraviolet radiation damages your skin. The aging
cost of that gorgeous tan is damage caused by UV rays.
These rays create free radicals:
UVA - damages the inner layers of
the skin and causes wrinkles and lines, and skin cancer.
UVB - the most damaging radiation,
burns the skin and damages the skin cell DNA, resulting
in long term skin disease .
Reducing exposure to these damaging rays is critical
in your skin antiaing program as no level of antioxidants
will reverse the impact of these sunlight induced free
radicals. In fact, sun exposure reduces your level of
antioxidants, weakening your immune system and promoting
risk to diseases such as cancer.
If you cannot avoid exposure to the sun, at least avoid
it during the hottest and most damaging hours [between
11:00AM to 3:00PM] and use a high grade sun block. Notice
I said sun ‘BLOCK’ not sun ‘SCREEN’
- A sunblock prevents both UVA and
UVB rays from being absorbed by the skin.
- A sunscreen is effective against
As with any dermatological product, you need to find
a sunblock that best fits your skin type.
Sunblocks are rated by SPF (Sun Protection Factor).
Sun protection factor (SPF) is a measure of relative
protection, not absolute length of time.
How long it takes you to burn without sun protection
is dependent on your skin type: the fairer your skin
the more quickly you burn.
An SPF 15 sunblock will provide 15 times the protection
compared to that if you had no sunscreen applied to
Types of Sunblocks
There are two basic types of sunblocks:
- Absorbers - act by absorbing UV
rays through a chemical reaction within the skin following
application e.g. Octyl Methoxycinnamate (OMC) and
- Reflectors - act as a physical
barrier to the UV rays which reflect them away from
Antiaging Sun Block Levels
To prevent photodamage, use a minimum SPF 30 for moderate
climates and SPF 48 sunblock in sunny or equatorial
Product Example: Coppertone SPORT® sunblock 48
|Very Fair /
|Fair / Sensitive
Use a sunblock every day – even when it is cloudy.
UV rays still penetrate clouds. In New Zealand, this
is particularly severe, where the UV level is 27 times
the international average due to the thinning of the
protective ozone layer around the South Pole. Unfortunately
the countries doing the most harm will not suffer the
consequences until the thinning expands further North.
So please do your bit for anti-aging of our South Pacific
nations and get environmental conscious!
Sun Protection in cosmetics
Cosmetic products that claim to contain sun protection,
usually only offer a sunscreen. These products are ineffective
as a separate sunblock because they do not contain significant
amount of active screeners.