“Blistex Ultra SPF 50+ offers advanced daily protection to defend lips from nature’s drying forces, in any season.” This is the opening statement which appears on the packaging of Blistex Ultra SPF50+ lip balm – the lip balm of choice for places with extreme weather conditions. We investigate the validity of this statement, by exploring the meaning and benefits of a strong SPF factor.
The Sun factor
There are three types of UV (Ultra-violet) rays in sunlight, which reach the earth. We are mainly concerned with two types: UV-A (Longer-wave rays) and UV-B (Short-wave rays). Both UV types are invisible to the naked eye.
UV-A and UV-B rays are responsible for skin ageing, eye damage and skin cancer. UV-B rays are generally associated with sunburn, while UV-A rays penetrate deeper into the skin affecting skin-cells below the outer-skin surface.
What we are continually try and do, is produce products that limit the damage of harmful UV rays, by producing products which contain SPF ingredients.
How does SPF help?
Skin Protection Factor or SPF is a measure of how well a skincare product protects the skin from the harsh UV-B rays. The Protection factor calculation is for the benefit of the user. A Skin Protection Factor is a calculation of how long the user can stay in the sun following the application of the skincare product. The calculation is quite simple. Assume that 1 SPF = 20 minutes of sunlight, then a product such as Blistex Ultra SPF 50+ means that the lip-care item will be effective for 20 minutes x 50 = 1000 minutes.
There are two notes to make with respect to SPF efficacy. There are potential factors e.g. water, or sweat, that may influence the duration of the effectiveness of the SPF. The second note, is that an a greater SPF e.g. SPF30, does not have double the effectiveness as an SPF15. In fact, an SPF15 filters out approximately 93 percent of all incoming UV-B rays. SPF30 keeps out 97 percent and SPF50 keeps out 98 percent. So don’t forget to keep applying sunscreen and lip-balm products.
Blistex Ultra SPF 50+
Ultra SPF 50+ is therefore a very effective lip-balm in areas where your lips are greatly exposed to harmful sun rays. While we normally consider this to be during the summer months, we cannot forget the effect of cold conditions.
Blistex Ultra SPF 50+ contains the protective ingredients for your lips. It is also infused with moisturizers and anti-oxidants which include Vitamin C and E as additional protection factors.
The combination of these ingredients helps ensure that lips are well protected from the harmful UV-B rays. When next in Dis-chem or Clicks, seek out the SPF50 shield and try this product. Or, simply purchase one here.