Board Thread:Questions and Answers/@comment-37807741-20190111181155/@comment-37953715-20190131225948

That's weird, I read somewhere that the six human SOULs disappeared after the fight with Photoshop Flowey.

Still, Frisk couldn't use the SOULs even if they didn't disappear, since they couldn't absorb them. a human cannot absorb another human SOUL.