Part Of skin, displaying the epidermis and dermis; a hair in its follicle; the arrector pili muscle mass; sebaceous glands.  Human hair contains melanin which gives darkish coloration and security from UV radiation. Human hair can take up and emit light across a wide array of wavelengths. The picture earlier https://aglocodirectory.com/listings13246730/indicators-on-hair-salon-in-ottawa-you-should-know