The magnetic topology of the internal flux surfaces can play an important role both in the turbulence onset and the turbulence reduction mechanism. The ITG instability growth rate can be reduced, for any aspect ratio, both increasing the triangularity above the value d ~ 0.4 and increasing the elongation at any fixed triangularity. Furthermore, the rise of radial electric field is more prompt in highly shaped plasmas as a consequence of the geodesic curvature reduction. The beneficial effect of the shaping on the H-mode edge confinement have been already observed in various tokamaks, as the shaping affects mainly the plasma edge where the transport improved region is located. Normally the external shaping degrades going deeper in the plasma and any effect of the shaping on the internal confinement would be unfruitful. However by playing with the plasma current profiles it is possible to vary (at fixed boundary shape) the internal flux surface shaping so that its effects on internal confinement can be pointed out.