Do not use either. Use a very small amount of dye to start with. You can stir it up a little but let it naturally dissolve in the resin. I did a little write up… Printing with Dyed Resin
I just tried some glow in the dark powder with white resin. While the white resin turned yellow (yellow pigment) the glow in the dark particles settled to the bottom of the vat. The base glowed nicely. The part had random spots that glowed. Really cool but sort of a failure as I wanted the whole part to glow evenly.
I have a small bottle of white resin mixing with orange. One of these days I will filter out the large particles and see how it prints.