Nano is the newest and most advanced eyebrow tattoo technique in the PMU industry. Nano is done with a single needle inside a machine, in which lines are gently tattooed to create the illusion of hair-strokes. Since nano doesn't cut the skin, unlike microblading, it leaves no trauma or scarring to the skin and gives better color retention after healing. This technique is more flexible with styles, gives a more realistic look and is more suitable for different skin types.