New sunscreen rating: SPF50+ only marginally better than 30+
A new standard allowing manufacturers to increase the sun protection factor in sunscreens from SPF30+ to SPF50+ and adding improved UVA protection was announced November 10 by the Therapeutic Goods Administration (TGA). The change is supported by Cancer Council Australia.
The new standard, developed by Standards Australia and Standards New Zealand, is likely to see SPF50+ sunscreens on pharmacy and supermarket shelves by around mid-January.
Chair of Cancer Council Australia’s Skin Cancer Committee, Terry Slevin, welcomed the new standard, but warned consumers not to overestimate the new level of protection.
“Despite the big difference in SPF numbers on the label, in fact the new SPF50+ sunscreen offers marginally better protection from UVB radiation, which causes sunburn and adds to skin cancer risk,” he said.
“SPF50+ filters out 98% of UVB radiation compared to 96.7% blocked by SPF30. It’s not a suit of armour; it needs to be applied just as generously, reapplied every two hours, and used in conjunction with protective clothing, a broad-brimmed hat, sunglasses and shade.”
The new standard for SPF30 offers the same protection against sunburn, caused by UVB radiation, as the current SPF30, but is required to have higher UVA protection in order to be labelled broad-spectrum. The sun’s UVA wavelengths are responsible for the sun’s ageing effect on the skin and also contribute to skin cancer risk.
Mr Slevin said there was no need to throw away your current sunscreen.
“Any sunscreen of at least SPF30 which is labelled as water-resistant and broad-spectrum offers good protection. Manufacturers will be allowed to continue producing and selling their current formulations that meet the old standard. The new standard applies to new products only and is simply a little better, and offers the consumer more choice.”
(Source: Cancer Council Australia)
For more information on skin cancer including common types of skin cancers, and its treatment and preventative measures, as well as some useful videos, see Skin Cancer.
Article Date: 17/11/2012
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