How to create a fully black material with no reflections at all?

Hey, thanks for the attention with this, here is the texture:

Regarding your other recommendation, i don’t think that would work, roughness makes no difference in my issue, but this is how it looks.

This is how the character looks with “Lit” preview:

I might have to fix this in the cel shader itself, this is how he looks without the cel shader, the issue barely noticeable here, if present at all:

and cel shader on:

This is my actual cel shader material: