| Lasers with wavelengths of 600-1100 nm penetrate deeply and are absorbed by eumelanin in the hair shaft and follicle, which is thought to be the target chromophore. |
| The new work identified the pigment, eumelanin, based on trace amounts of metals in the fossils. |
| There are two types of melanin: pheomelanin which is yellow coloured, and eumelanin which is black. |
| In the absence of cysteine, indole 5-6 quinone is formed and it is eumelanin that will be synthesised. |
| There are two different melanins found in human hair, eumelanin and pheomelanin. |
| Cats as you know have many different colors, but there are only two different types of pigments: eumelanin, black, and phaeomelanin, red. |
