What does the Tyndall effect describe?

The Tyndall effect specifically refers to the scattering of light when it passes through a colloidal solution. This phenomenon occurs because the particles in a colloid are large enough to scatter light, but not so large that they settle out of the solution. When a beam of light passes through a colloidal mixture, such as milk or fog, it becomes visible due to this scattering effect, creating a distinct visual appearance.

Understanding the Tyndall effect is essential, especially in beauty and skincare, as it helps explain various optical phenomena in products that may contain colloidal ingredients. This tinge of understanding can inform product formulations and texture assessments, contributing to the effectiveness of beauty applications.