Assuming we all understand that skin thickness varies depending on different areas on the body and also from person to person (e.g., men usually have thicker skin than women, older skin is typically thicker than children’s skin), pigment for cosmetic tattoo is deposited right below the epidermis (usually anywhere from 50 to 100 cell layers or an average of 0.1 mm) into the papillary dermis, or uppermost layer of the dermis right below the dermoepidermal junction. By comparison, the thickness of a dime is 1.35mm.