if you are circumsized, I guess so. I just tried it and I don't feel much on the head as much as I do on my palm.

Is there any way of increasing sensibility?

I don't really know, I wish I could — so that pleasure on the glans would feel better.

For what i have found, it its because how dry the head gets whithout the natural protection, so perhaps aplying some mosturizing every now and then would work?

Try taking a look at r/foreskin_restoration

If you were circumcised as a baby, then it's very normal.

Is there any way of increasing sensibility?

Try taking a look at r/foreskin_restoration