Which layer(s) of skin is/are penetrated when someone gets a tattoo?

What happens in the skin that allows the ink to remain and become permanent?

What is the process of removing that ink through laser tattoo removal? Can this cause any damage to the skin?

Do you have any tattoos? If so, have you ever thought about removal? Why or why not? If you do not have any tattoos, does this knowledge of how they are made make you more or less likely to get one?

Text book-Tortora, G. J. & Derrickson, B. H. (2017). Principles of Anatomy and Physiology (15th ed.). Hoboken, NJ: John Wiley & Sons.