Ortho Molecular Products K-Force Capsules, 60 Count

Why is this do expensive? Prices range between $40/45 for same count. It’s s deal if 2 bottles in packaging

I don't see in the bottle usp or nsf label, which indicates that has been tested by a 3rd party to ensure quality, does it have one?

Is the product inside the capsule supposed to be yellow? I seem to remember when I got these from my Dr b4 that the powder in the capsules was white.

It says on the container “cannot be sold on Amazon” why are selling here?