The first thing to do for sun protection or to prevent skin cancer in the long term is to use sunscreen. Sunscreen prevents skin damage by reflecting, absorbing or scattering ultraviolet (UV) radiation. It also delays sunburns and reduces skin lesions caused by the harmful rays of the sun.
.jpg "SPF Analysis (Sun Protection Factor Determination Test)")
It is a well-known fact that ultraviolet rays from the sun cause long-term negative effects on the skin. Therefore, constant exposure to ultraviolet radiation strains the body's defenses and causes sun damage to the skin. Therefore, sunscreen is a very important product.
All sunscreens also have a sun protection factor (SPF) system.
Sunscreens mainly consist of chemical (organic) or physical (inorganic) compounds that prevent ultraviolet radiation from penetrating the skin. In general, ultraviolet rays come in three forms: ultraviolet A, ultraviolet B and ultraviolet C. They all have different wavelengths. The shorter the wavelength, the more likely the light radiation is to cause biological damage. Ultraviolet C has the shortest wavelength and is the most dangerous type of light. However, it does not pose a risk as it cannot penetrate the earth's atmosphere and the ozone layer usually absorbs it.
Protective agents are generally effective against ultraviolet A and ultraviolet B and act as a filter and absorb intense ultraviolet radiation. As a result, sunscreen is a popular method of sun protection, and this protection is directly proportional to the sun protection factor (SPF).
Sun protection factor (SPF) refers to the sunscreen's ability to slow down solar radiation that can cause a hypersensitivity reaction in the skin. The effectiveness of sunscreen substances depends on the sun protection factor and permanence. It is mainly effective against sun protection factor ultraviolet B, so it is a sunscreen (not all sunscreens can protect against ultraviolet A).
Sun protection factor is the ratio of the UV radiation required to burn skin protected by sunscreen to the UV radiation required to burn skin without sunscreen. In general, protectors with higher protection factors provide more effective protection than protectors with lower protection factors. For example, a product with a protection factor of 15 blocks approximately 93 percent of ultraviolet B rays, and a product with a protection factor of 30 blocks approximately 97 percent. However, no sunscreen can provide complete protection against the sun.
Meanwhile, SPF is just a measure of how well it protects against ultraviolet B rays, not how well it protects against ultraviolet A rays. Because ultraviolet B mainly causes damage on the skin, such as sunburn. Additionally, ultraviolet A causes oxidative damage to DNA and breaks down collagen fibers, causing skin aging.
A sun protection factor determination test is needed when claiming SPF for a product. While performing these tests, advanced laboratories determine the effectiveness and safety of the product.
A product's SPF value is determined by the time it takes for skin exposed to ultraviolet radiation to redden with and without applying protection.
If unprotected skin turns red within 10 minutes, when a product with a protection factor of 30 is used, this time becomes 30 times the duration of the reddening, that is, 300 minutes. The SPF value of the product is determined based on the value obtained from test data.
These tests comply with the following standards published by the International Organization for Standardization (ISO):
These standards provide a basis for evaluating sunscreen products for the protection of human skin against skin hypersensitivity caused by solar ultraviolet rays.
These standards describe test methods for determining the protection factors of sunscreen products in vivo. These standards apply to all products intended to come into contact with human skin that contain any ingredient that absorbs, reflects or scatters ultraviolet (UV) rays.
Among the numerous tests, measurements, analysis and evaluation studies provided to businesses by our organization, there is also SPF analysis (sun protection factor determination test).
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
EUROLABreporting and certification activities, United Accreditation Foundation (UAF), Turkish Accreditation Agency (TÜRKAK) ve Enterprise Accreditation Foundation (EAF) based on the accreditation provided by the accreditation body. The Enterprise Accreditation Foundation (EAF) accreditation body is also a signatory of the United Nations (UN GLOBAL COMPACT) organization.
