The Choi implanter pen is the instrument behind the DHI technique. Its hollow needle both extracts and implants a follicle in a single motion, with no separate channel-cutting. That precision makes it a favourite for the frontal hairline and delicate facial areas — at the cost of a longer procedure that demands an experienced team.
What is the Choi implanter pen?
Used in the DHI (direct implantation) technique, the Choi pen has a hollow needle at its tip in sizes from 0.5 to 1.5 mm. It performs extraction and implantation in one step: the follicle is harvested and then planted directly into the thinning area without opening a separate recipient channel.
Advantages of the Choi pen
- Minimal trauma to follicles and scalp, which limits pain and lengthy healing.
- The best option for fine facial areas — eyebrows, eyelashes, moustache and beard gaps.
- Protects follicles from bending during transfer and plants them at the natural angle and direction.
- Produces a precise, natural-looking result, especially along the frontal hairline.
- No incision scars in either the donor or recipient area, lowering infection risk.
Drawbacks to be aware of
- It must be performed by a skilled, experienced surgeon.
- The procedure takes longer and needs a well-coordinated team.
- It costs more than traditional transplantation because of the extra effort involved.
- The team must be specifically trained on the Choi pens to guarantee a good result.
- Side effects are few, but a recovery period is still required.
Before the procedure
- Pre-op tests assess your general health.
- Your doctor confirms your cosmetic goal, selects the technique, and explains anaesthesia and instructions.
- Avoid blood thinners such as aspirin for at least two weeks before and after.
- Stop smoking and alcohol for at least three weeks so they do not affect anaesthesia and medication.
Recovery
- Eat healthily and drink enough water.
- Wash the transplanted hair only as instructed.
- Avoid hot water and never aim a shower jet at the scalp — pour water gently by hand.
- Use only the medical products your doctor recommends and keep the scalp clean.
- Do not sleep on the transplanted areas; sleep on your back, propped on several pillows to reduce swelling.
Results timeline
Results appear gradually. Follicles settle and heal fully within about three weeks, after which the transplanted hair sheds and regrows from around the third month. A real result becomes visible by the sixth month, and full growth with the final look arrives one to one-and-a-half years after the transplant.
Cost of a Choi pen hair transplant
In Egypt, Choi-pen transplants generally range from USD 1,000 to 3,000; at Dr. Sherif Hegazy’s clinic in Cairo the range is about USD 1,000 to 2,000 — a strong value compared with much of the region.
Before-and-after results at the clinic
The Choi pen delivers some of the most natural hairlines available — in the right hands. Book a consultation with Dr. Sherif Hegazy to discuss your case.
