Agreed with Myrna. Glowing can mean different things. I.e., shimmer and pearlescence can give a glow. Shimmer is like glitter but with smaller particles. So shimmer is less intense. Some highlighters are pearlescent, which is an even softer look.
You can also get a glow from moisture or sheen. E.g., wearing liquid foundation without powder on top can give a certain dewy glow. Mac makes an oil that can be mixed with foundation to enhance the effect.
Sorry, I don't know if that other product is disc.