Tris-Biphenyl Triazine (Tinosorb A2B)

Tris-Biphenyl Triazine (Tinosorb A2B) is a highly efficient, photostable, broad-spectrum UV filter developed by BASF that covers UVB and UVA2 (280-340 nm) ranges. As a particulate organic filter (often nano-sized), it acts as a hybrid agent to boost SPF and bridge the UVA2 gap left by other filters.

Key Aspects of Tinosorb A2B:

Protection Range: It is considered the most efficient filter for UVB and UVA2.

Mechanism: It acts as a "hybrid" filter, combining chemical absorption with physical scattering of light.

Formulation: It is water-dispersible, making it versatile for creating high SPF, water-resistant, and light-textured products.

Stability: It is highly photostable, meaning it does not break down quickly under sunlight.

Usage: It is commonly used in Europe and other regions for anti-aging and sun protection products, but it is not currently FDA-approved for use in the US.

It is often used alongside other filters like Uvinul A Plus to provide complete, broad-spectrum protection.