why is the (4 oz)Super Cop cream costlier than the the (4 oz) Super CP Serum. I am currently using Tri Reduction and am ready to move to a stronger CP so I am thinking the CP serum or Super Cop cream is the next step.

The Super Cop cream is much stronger than the Super CP Serum. We can cannot make the serum as strong as the cream because the serum just falls apart if it is too strong.