Photostability Evaluation of In-vitro UV Filters

The main purpose of the manufacture of sunscreen cosmetic products is to select a combination of UV filters that provide broad spectrum protection with maximum efficiency. Broad spectrum protection requires both SPF ≥ 15 and critical wavelength ≥ 370 nm.

If a photoreaction occurs between the performance and photostabilization of sunscreens, an accelerated degradation may occur. As a result, photostability is mandatory for maximum efficiency of sunscreen cosmetic products. It affects photostability, SPF and protection properties.

For this reason, one of the tests and analyzes performed on sunscreens is “In-vitro UV Filters Photostability Evaluation”. As a result of the evaluation, an opinion can be made on whether the photostability of sunscreens is appropriate and its effects on SPF.

You can contact Nanolab Cosmetic Analysis Laboratory for “In-vitro UV Filters Photostability Evaluation” procedures.

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