SPF in vivo veritas


The Challenge

When using a sunscreen product by the consumer, the sun protection actually provided by the product can be mitigated if the application is poorly controlled and dosed or if the product itself has a spreading variability. It is therefore difficult to quantify the final SPF that the consumer could potentially have.

The Solution

Based on the claimed SPF, variability of in vitro SPF and two statistical approaches [1-2], this tool helps you estimate the sun protection that the consumer could achieve by using this solar product.

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[1] M. Pissavini, O. Doucet and B. Diffey, A novel proposal for labelling sunscreens based on compliance and performance. IJCS, 2013, 1-5
[2] Diffey BL. When should sunscreen be reapplied? J Am Acad Dermatol. 2001 Dec;45(6):882-5
These documents, these tools, any answers or information provided herein by SUNCERT, does not constitute a legally binding obligation of SUNCERT. While the descriptions, designs, data and information contained herein are presented in good faith and believed to be accurate, it is provided for guidance only, No warranties of any kind, either express or implied, including warranties of merchantability or fitness for a particular purpose, are made regarding products described or designes, data or information set forth. Because many factors may affect the final value, we recommend that you perform a full inspection of the product to determine the suitability for your particular purpose prios to use.

*25 UV measurement on 4-5 Molded PMMA plates (a total of 100 – 125 scans) manually spread with a quantity of 1,3 mg/cm²