There are several different methods of putting color in the skin....all are tattooing techniques. Microblading is a new "buzzword" for the same procedure except the practitioner is using a hand tool to cut hairstroke lines in the eyebrow area to deposit color.
Permanent Makeup does the same thing using a digital machine but with more precise placement of color "depth" because it does not rely on the practitioner's hand pressure with each hairstroke. Exact depth is crucial for uniform color retention and to make the color last for years instead of months.