Loss of sensitivity in penis

Your not alone , you are describing what most circumcised men feel.
You could google foreskin restoration for more info.
I believe it is basically stretching the skin and trying
to cover part of the glans to make them moist but I
think the damage is done as the foreskin protects the
head and the inner lining of the foreskin which is the
more sensitive skin. Im not sure if you should be
using a moisturiser but it may be worth researching more to se if this may help.
To look at a circumcised and uncircumcised penis together
the first thing you notice is how uncut looks moist
compared to circumcised which looks dry.