HUE temporary tattoos are absorbed into the top layers of your skin after applying. The greyish print will react with the amino acids that naturally occur in your skin. This process will change your tattoo into a blue-black colour in 12 - 48 hours. The exact colour depends on your body and skin.
HUE temporary tattoos only penetrate the top layer of the skin (epidermis) and do not go any deeper. Your skin's top layer automatically renews itself in roughly 2 weeks. So your tattoo's lifetime basically depends on how quickly your skin renews itself. More tips on how to make your tattoo last longer.
