DHI (Direct Hair Implantation) is a hair transplant technique that involves the use of a specialized tool called a Choi pen to directly implant donor hair follicles into the recipient area of the scalp. Unlike other hair transplant techniques, DHI does not require the creation of incisions or channels before implantation. Instead, the Choi pen is used to create tiny holes in the recipient area and insert the hair follicles simultaneously. This technique results in a higher survival rate of the implanted hair follicles and helps achieve a more natural-looking hairline. DHI hair transplant is a minimally invasive procedure and can be performed on both men and women.

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