I recommend the Picasso spatula.

This is a spatula, an essential item when using foundation.

There are many cheaper versions, but when I tried them, they weren't as good as Picasso.

It applies evenly and has excellent adhesion.

It is also really easy to maintain because you can simply wipe it clean with a wet tissue or alcohol swab after use.

Once you use this, you can't go back to anything else haha