Everyone who wants to get rid of a tattoo wants to know: "How much will it cost, and how many treatments will it need?'
Generally, older tattoos require fewer laser treatments [generally done using a the very short pulses generated by a Q-switched laser like a Medlite C6]. This is because as time goes on the body slowly gets rid of some of the tattoo ink, and in addition to that, the tattoo ink may slowly fade because of the effects of ultraviolet light.
Other variables which influence the number of treatments needed include:
Amateur vs professional tattoo? [Amateur tattoos usually have less ink, and use inks which respond better to laser treatment.]
Ink color: dark blue or black inks generally absorb laser energy more efficiently, and are therefore easier to treat. Colors like green and blue absorb most wavelengths less well, and colors like yellow, brown, white and violet usually require a larger number of treatments or may be practically impossible to treat.
Location on the body: the further you go down the body, the slower the body clears away tattoo ink after the particles have been shattered by energy from a Q-switched laser. For example, if there are identical tattoos on the shoulder and the ankle, the tattoo on the ankle might take twice as many treatments to get to the same endpoint.
How long you wait between treatments: the longer you wait between treatments, the more time you give your body to clear away the ink after it has been treated, and the smaller the total number of treatments you will need to clear the tattoo. So, if you are willing to wait 6-12 months between treatments, you might need half as many treatments compared with treating the tattoo every 2 months. BUT, the downside is, if you wait 6-12 months between treatments, it might take several years to clear the tattoo. In the final analysis, it is a very personal decision, and depends on each individual's personal preferences, schedule and budget. If someone wants to get rid of a tattoo ASAP and has the time and the money, it can be treated every two weeks.