The Solar Protection Factor (SPF) of a topically applied sun care product indicates the skin protection level against UVA and UVB rays.
To obtain the SPF protection value, in vitro and in vivo tests (clinical tests) must be carried out. Health authorities of each country regulate these tests by imposing strict standards to companies that are launching sun care products on the market.
Thankfully, a will for a global harmonization of these rules exists. Evalulab offers tests to prove the effectiveness and safety of your sun care products. Once the tests are completed, the values of “SPF” on the packaging are accurate and precise product claims that comply with regulations.
In vivo Sun Protection Factor (SPF)
The in vivo Sun Protection
Factor (directly measured on the skin), also called “static” test, is determined by a standardized and reproducible method based on references…
Water Resistant Sun Protection Factor
In vitro Tests
Our in vitro tests
(without irradiation of the skin) are performed according to methods detailed below. Solar simulators and radiometers used are calibrated according to international guidelines.
In vivo UVA Protection Factor
The in vivo UVA Protection
Factor (directly measured on skin) is determined by one of these two standardized and reproducible methods…
The in vivo determination of the phototoxicity
potential (directly measured on skin surface) is performed by a standardized and reproducible method. Our protocol is conducted according to the recommendations of the “Skin Cancer Foundation”.