DHI (Direct Hair Implantation) is a refined form of FUE that uses a Choi implanter pen to place follicles directly into the scalp without creating incisions first. It gives the surgeon fine control over the angle, depth and density of each graft.
With DHI, each extracted follicle is loaded into a fine hollow pen and implanted in a single step, rather than making recipient incisions in advance. This can allow denser packing and very precise control over hairline design and natural-looking angles.
DHI is often chosen for hairline work and smaller, detail-focused areas. It can be more time-consuming and more expensive than standard FUE, and requires a skilled, experienced operator to get the best result.
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