In-Vitro

In Vitro Sunscreen Testing: Comprehensive Evaluation of UV Protection

Eurofins CRL's in-vitro sunscreen testing services provide essential information about the type of light radiation being filtered by sunscreen formulations and textile materials. While this type of testing does not use human subjects to determine an SPF value, it allows for targeted claim substantiation and comprehensive evaluation of UV protection properties.

Photostability Testing: Assessing SPF, UVA Protection, and Critical Wavelength

This test consists of evaluating the Sun Protection Factor (SPF), UVA Protection Factor (UVAPF) and Critical Wavelength (CW) which expresses the sun protection level of a sunscreen product through the full UV spectrum. Photostability is assessed by calculating the SPF before and after UV exposure in this model.

Critical Wavelength Test (FDA Broad Spectrum)

Broad spectrum protection refers to protection from both UVA and UVB radiation. To support a broad spectrum claim, the test material must protect against most (90%) of the UVB/A spectrum from at least 290nm to 370nm and only “broad spectrum” sunscreens with an SPF equal to or higher than 15 can claim benefits against skin cancer and skin aging.  This data supports regulated claims.

Blue Light Testing: Evaluating High Energy Visible Light Protection

High Energy Visible Light (HEV) or Blue Light has been implicated as a source for skin problems via induction of inflammatory cytokines and oxidative damage. Using specially designed instrumentation that excludes UV rays, Eurofins’ scientists are able to measure the absorption of HEV/Blue light of a given ingredient. This data supports non-regulated claims.

Boots Star Rating: UK-Recognized UV Transmittance Measurement

Recognized in the UK, and also known as Boots Star Rating system, measures the UV transmittance through a sunscreen film.  PMMA plates are used as a substrate for measurement. The ratio between the mean UVA and UVB absorbance measured before and after irradiation of the sunscreen products is calculated.

Fabric Ultraviolet Protection Factor (UPF) Testing

UPF is a relatively new designation for sun protective textiles and clothing which represents the ratio of sunburn-causing UV measured with and without the protection of a fabric. Sun protective clothing and other textiles (camping gear, beach wear) are calculated by a UPF system, analogous to SPF for sunscreen formulation.

Trust Eurofins CRL's in-vitro sunscreen testing services to provide comprehensive evaluation of UV protection properties, support targeted claims, and ensure compliance with regulatory requirements. Contact us today to learn more about how our expertise can help you develop and market effective sun protection products.

UV Fabric Protection Testing

With the ability to test industry fabrics for UVA protection, our lab offers support to producers of outdoor apparel, umbrellas, hats, swimsuits and more.