Color of butterfly
What is the magic formula hidden underneath this makeup? There is none. It is simply the laws of Nature, controlled by L’Oréal. Namely, the use of sunlight, which we’ve known since Isaac Newton’s experiment in 1666 breaks down into all the colors of the rainbow.
White light bends when it passes through the prism. This refraction lets us examine all the colors of the visible spectrum.
Each color is an electromagnetic wave represented on paper by peaks and valleys. The distance from one peak to the next is called wavelength.
If the peaks of two waves meet, it results in a brighter, more intense ring of light. If a peak meets a valley, it results in darkness.
This phenomenon of light-wave interference is responsible for those beautiful colored effects in soap bubbles.
Solid objects also interact with the light that shines on them: either they absorb certain wavelengths or modify their paths. The distance from which light penetrates an object depends on the latter’s texture. A black object absorbs all of visible light’s wavelengths, while a white object absorbs none. As for a blue object, it absorbs all wavelengths except the color blue, which is reflected.
Some natural colors result only from these phenomena of refraction, absorption and interference. Certain beetles, dragonflies and opals boast these intense colors.
L’Oréal researchers have succeeded in integrating colorless materials – actual miniscule chambers of light – into our makeup products. They catch rays of light and enhance them, offering your eyelids new color effects.