Which is the strongest one?

Which is the strongest one?

  The first one must be Mithra, it has 10% lidocaine and it can numb 4-6 hours, if you want to numb long time, please apply it more time on your skin.

The second one is Green 40%, it is the most popular one. many buyers like it very much. it has 5% Lidocaine, 5% Prilocaine and 1% Epinephrine numbing cream