What is water activated eyeliner?

Water activated eyeliner is a type of eyeliner that is activated when it comes in contact with water. It usually comes in a cake form, which is a dry and compressed product. To use water activated eyeliner, a small amount of water is added to the cake, which creates a creamy consistency. This creamy consistency can be applied to the eyelids using an eyeliner brush. The benefit of using a water activated eyeliner is that it allows for more precise and controlled application, it can be used to create different styles of eyeliner, and it tends to last longer than other types of eyeliners. Additionally, water activated eyeliners are often considered to be less harsh on the skin compared to other types of eyeliners, such as gel or liquid liners.