Always pay attention to whatever the tattoo artist tells you, and do exactly what he or she instructs. If the artist is a professional, they will definitely know what kind of product and healing technique works the best for their own creation. Remember that if you change the aftercare for whatever reason it may be, the artist won’t be obliged to touch up your tattoo free of charge. It’s ultimately up to you to take care of your tattoo, once you leave the studio.
"The appearance of tattoos aging depends on [...] your artists' skill," Villani says. "Tattoos lay in the dermis of the skin, which is only one millimeter thick. Ensuring the needle hits this one-millimeter layer is requires precision. If your artist goes too deep, then the ink will blowout, and what originally looks like clean lines, over time (not a very long time) will look sloppier." To make sure your tattoo quality is what you want, make sure you do a good amount of research beforehand.
The word tattoo, or tattow in the 18th century, is a loanword from the Samoan word tatau, meaning "to strike". The Oxford English Dictionary gives the etymology of tattoo as "In 18th c. tattaow, tattow. From Polynesian (Samoan, Tahitian, Tongan, etc.) tatau. In Marquesan, tatu." Before the importation of the Polynesian word, the practice of tattooing had been described in the West as painting, scarring or staining.