Unfortunately, most liquid makeup has a limited shelf life for hygienic reasons. Each time you dip an applicator back into the tube (as with most concealers), you’re turning it into a petri dish. I recommend a powder and a blush/sponge that you would need to clean after each use for truly long-term use. Alternatively, any liquid product that comes in squeeze/pump containers (more airtight=longer lasting, and they don’t have problems with bacteria) would also potentially work. Do NOT take the advice of people who keep makeup for years lol.