I always get 1.5 mg from Skip's. Script says 3 capsules at bedtime. I can play with the dosage this way but it costs more for more caps.
I take two which is 3 mg. When I used to get the 1.5 mg with Avicel filler in a clear capsule it was pink. Now my clear capsule with sucrose (Domino sugar) is white.
I opened the the ones that were pink and put in applesauce on a tablespoon to get it into me faster. Capsule take time to dissolve for me. It was pink inside, so I think the Avicel is pink.
Fillers of Lactose is white and so is sugar. If you get Calcium carbonate that does not work as a filler, not absorbed is whilte. And never get a slow release formula.
Old picture of Avicel capsules (pink). Video doesn't work just the story.