Weird result on my anisotropic material

I want to create an anisotropic material for my nails but I have a weird result.

I want my nails to look like the ones in this picture

How can I reach this result?:rolleyes:

Try 0.25 in the rotation parameter. Should work if the z is pointing towards the point (coordinate wise). If all nails are in same mesh, you have to unwrap it and use UV based tangent. That can cause a visible shading artefact though due to UV tangents not being smoothed over the seam.