Can a Family Member Donate Hair for Hair Restoration Surgery?

Question:

My hair loss is really bothering me and I'm considering a hair transplant. I know there is a limit of how many donor hair follicles I have, but can a family member donate more?

Answer:

Unfortunately, hair transplantation is limited to your own available donor hair supply.  Hair follicles transplanted from one person to another won't grow.  This is because, like donating an organ from an incompatible donor, your body will reject the hair follicle.  The only possibility of success might be if an identical twin offered their donor hair.  Of course, given that they would have the same hair loss condition, they'd probably want to reserve their donor for their own hair restoration surgery.