dose tree-level results in effective potential incorporate loop effects?

For a Lagrangina, we can perform the one loop calculations and
renormalization to get the one loop results. If we have the one-loop
effective potential, can we perform tree level calculations with this
potential to get the same loop results in the original theory?
I think we still have to do one loop calculation with the effective
potential to get one-loop results of the original theory. Is this
right?

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