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What does SPF50+ mean as far as sun protection?
The benefit of SPF50+ can be best summarised as follows.
How effective sunscreen works is determined by testing for two properties:
1. The “broad spectrum performance” which is the amount of protection from harmful UVA radiation (mainly responsible for the development of melanoma and other skin cancers.
2. The “sun protection factor” (SPF) which measures the amount of protection against UVB radiation (mainly responsible for the burning and aging of the skin)
SPF50+ sunscreens have both an increased SPF factor and are required to meet more stringent broad spectrum requirements in Australia.
Do SPF50+ sunscreens offer much better protection than SPF30+?
The answer is YES! You may have heard that SPF50+ will only provide an extra 1-2% protection against the sun’s rays to that provided by the SPF30+, however this extra 1-2% provides nearly double the filtering of an SPF30+. It is important to understand how the SPF rating is validated, as it provides a good insight into the additional protection provided. SPF in Australia is validated via a human application test. A person’s skin is exposed to UV light that replicates sunlight. The time it takes to start to show colour is monitored. Sunscreen is then applied and the test is repeated to determine the difference in time it takes for a person’s skin to show signs of colour. If it takes just over 2 minutes for a persons skin to show signs of colour with no sunscreen applied, and 60 minutes once sunscreen has been applied 20 minutes before going out in the sun, then SPF30 rating is assumed (60mins / 2 mins= 30).
Using this same process, if it takes 100 mins before the subject’s skin shows signs of colour once a higher protection sunscreen is applied.
The SPF rating of 50 is applied.
You will also note that for a sunscreen to be labelled as SPF50+, it must provide an SPF rating of 60 or higher, providing a very high level of sun protection. An SPF50+ Must have an SPF of 60 would usually provide 120 minutes of protection using the above example (120/2 = 60), which is essentially up to twice that of an SPF30+! This shows that whilst it’s true, it is only an addition
1-2% filtering from the sun’s rays is provided from an SPF+, it is an important 1-2%! The other positive also, with the change in SPF ratings is that all the new SPF50/60 formulations require the inclusion of additional UVA filters to provide protection against these dangerous rays. Under the regulations of the TGA, the changes in standard and test methods means there will be a much better than four-fold increase in protection against the harmful UVA rays in moving from an SPF30 to a SPF50/60 sunscreen product. The SPF50+ sunscreen we supply far exceeds this requirement by offering up to 9 times better and improved UVA filtering versus that found in SPF30+ sunscreens, providing a much better advantage to the consumer!
It must be said, that care needs to be provided when being exposed to the sun and frequent application of sunscreen should be adopted, Also after excessive sweating, swimming and towel drying. Best protection from prolonged sun exposure is to cover up exposed skin with sunglasses, hats and clothing is recommended, sunscreen should be used were this is not possible.Sunscreen SPF50+ Sunscreen , here’s a few facts and detaitails about it.
Complies with the Aust/NZ STANDARD AS/NZS 2604:2012
This should help reduce the risk of some skin cancers.
Avoid over exposure to the sun and wear protective clothing, hat and eyewear.
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