Most of us know that it's a good idea to put on some sunscreen before exposing ourselves to the sun but how much do we actually know about the effectiveness of the product we're using? Are we inadvertently putting our health at risk because of ambiguous labelling?
The European Commission (EC) has recently issued a Recommendation to the sunscreen industry which aims to make the labelling on sunscreen products easier to understand and the level of protection provided clearer.
The improved labelling will start to become visible in the shops this Summer but will not be implemented across the board until Summer 2008. This is because many manufacturers had already printed their labels for this Summer in advance of the Recommendation.
One of the problems identified by the EC was in relation to the 2 different types of hazardous UV radiation given off by the sun; UVB radiation which is the cause of sunburn and UVA radiation which causes premature skin ageing, interferes with the human immune system and is a major contributor to the risk of skin cancer. The standardised Sun Protection Factor (SPF) currently used on sunscreen labelling only indicates the level of protection against UVB radiation. Sunscreen products with only UVB protection may provide a false sense of safety because they let hazardous UVA radiation reach the skin. The level of UVA protection (if provided) has, in the past, been indicated in many different ways, examples of which include 'with UVA filters', 'SPF 30, UVA of 30A' and '100% anti UVA/UVB/IR'. This can be very confusing for consumers as there is no consistency and therefore no way of accurately comparing the level of UVA protection in one product with that in another and also no way of easily knowing exactly how much protection is provided.

|
Filter
|
% of light able to pass through the lens | Description |
| 0 | 80-100 | Used mainly for fashion and do not significantly reduce the glare from bright sunlight |
| 1 | 43-80 | As above |
| 2 | 18-43 | Suitable for sunny weather and driving |
| 3 | 8-18 | Suitable for bright sunlight, driving and general purpose wear |
| 4 | 3-8 | Suitable for very bright conditions and should not be worn whilst driving or operating machinery |
Date of release: 10 August 2007