What you see here is a screenshot from a short embedded tutorial that demonstrates the depths to which the different wavelengths of light penetrate the skin. It is a part of L’Oreal’s Skin Science page, a very extensive resource that will help you learn much about your skin and the science L’Oreal does for R&D of their products.
To view this tutorial, you will need to go to this page and click on the image. A pop-up will appear that will slowly demonstrate wavelength penetrating the skin. Helpful information to keep your skin safe and young looking for years to come.