What is the ideal size of the FUE punch?

Everyones hair caliber is different so the punch size needs to be a balance between making the smallest scar possible while being able to extract the graft intact and some insulating tissue around the graft. I start each case testing different punches, revolution speed, and type of punch. I don't go above 0.8 mm, preferably a 0.7 or 0.75 mm. Remember typically the purpose of doing an FUE is to camouflage the donor area for people that want to wear their hair very short. The punch size and distribution of extraction is critical to this end. 

The technique of graft picking is performed by using a fine micro-punch 0.7 to 0.9 mm diameter depending on the quality of the hair. 

The FUE punch size will vary from patient to patient. Your surgeon will ultimately decide which FUE punch is ideal for your hair transplant.

There is no one right answer. Each case requires matching the right punch size to the hair caliber of the patient. Generally, we use a 0.80-0.85 mm punch for Caucasion patients, and 0.90-0.95 mm punch for African-American patients due to the curl of the hair within the dermis. Clinics which use 1.0 mm punches or higher (as with the ARTAS machine) should be avoided due to excess scarring.

Hello, Thank you for your question. The punch size is different for each patient,  might be changing based on the hair caliber. The diameter of the punch I use is between 0.6-0.9 mm. 

There is no ideal size. During a surgery a skilled FUE surgeon determines what is the best size for the particular patient based upon hair thickness and hair character