It's often said that a transplant can never match native density, and it would be unwise to attempt it because you don't need to go that high to get the impression of density/opacity of the scalp.
But it's still an interesting topic and may be worth considering for those with minimal loss and good donor or straight, fine hair who require more density to get the appearance of thickness.
Density is said to be limited also by the amount of hair you can implant in one go. Try to put too ma
This are very interesting posts from @Dr. Michael Beehner made in 2009:
"The 60 FU per cm2 is certainly not the practice of the majority of hair transplant doctors. In our ISHRS Journal (the Forum) 2 issues ago, a doctor from Europe showed a high survival rate of 100 FU's in a cm2, but the grafts were put in absolutely perpendicular, which is about the only way you can accomplish that - but the aesthetic result of grafts placed in an upright angle is horrendous and very abnormal."
Thi