What safe protectant to use on dash pads....

Picked up a nice original 68 B-Body dash pad at the local salvage yard, I cleaned it up but was wondering...what is a safe coating to put on after cleaning to protect it and not harm it? I’ve seen armor all ruin stuff so not interested in that LOL....thanks!

Some pictures, before and after cleaning....it has dried out and not shiny anymore, just want to use something good and safe on it