Product of scalar superfields
= Product of scalar superfields
A product of scalar <superfields> is a scalar <superfield>: the pullback of a product is the product of the pullbacks at the same transformed <superspace> point. Infinitesimally, the even supersymmetry variation obeys $\delta(ST)=(\delta S)T+S(\delta T)$. This follows from the <graded Leibniz rule> for the odd <supercharges>, after including their odd parameters.