It is called permanent makeup because the molecules implanted into the skin always remain, but the colour will fade over time. The pigments used are specially formulated for these procedures.
There are many reasons your cosmetic tattoo will fade. Internal and external factors such as sun exposure, skin care products that are exfoliating and anti-aging along, oily skin along with medications and general health of the client.
Determining how long it will last is dependant in many of these factors.you are never committed for life as you can easily transition from your faded procedure and just use it as a guildeline to follow for your own application of makeup products.
Or you can see your professional for a colour boosting touch up every one to three years.