You can use a normal sunscreen. But if your tattoo piece is important for you, we’ve got the best sunscreens dedicated specially to protect and increase the longevity of your tattoo.
Some protect form the water, some moisturize, and all protect from the sun, which damages the skin and decrease colour and brightness on tattoos.
For how long after the tattoo is done should you keep use sunscreen? During the first 3 months it’s essential because the tattoo is still healing. If you really like your piece, the first 50 years should be enough.