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This article introduces a needleless microjet injector using laser pulse energy for tattoo pigments in scalp micropigmentation, highlighting an almost painless procedure without anesthesia.

This article discusses the limitations in the design or mechanism of hair implanter pens and reports no new findings.

This clinical trial found that using a 45-degree angled implanter with the bevel facing the skin in FUE hair transplantation significantly reduced insertion resistance, graft popping, and bleeding, while improving efficiency and graft alignment compared to conventional methods.

This study suggests that newly developed micro-pigment-encapsulated biodegradable microneedles accurately implant pigments in pig cadaver skin, potentially advancing scalp micro-pigmentation methods.

This study found that hair transplantation using micrografts and minigrafts achieved high patient satisfaction and a graft survival rate of about 90% for different types of hair loss.

This abstract provides no results or study findings; it only includes author affiliations and general commentary.

This case report describes a 45-year-old male who developed a post-operative infection after hair transplantation, likely due to the reuse of a dull sterile implanter pen, highlighting the need for proper instrument selection and infection control.

This article describes a new instrument, the KD spreader, designed to help novice physicians perform follicular unit extraction hair transplantation with reduced trauma and operator fatigue, but it does not report new clinical results.

This study reports the development of a prototype robotic hair transplant system capable of efficiently harvesting and implanting hair grafts, showing promising accuracy and performance in tests using a spherical scalp phantom.

The researchers developed a new follicular unit extraction system with adjustable needle lengths and precise rotation speed, which they report as being superior to existing systems for non-incisional hair transplants.

The document concludes that automatic biofiber hair implant is a new method for improving hair growth.

This article describes newly designed tools that reportedly ease and enhance hair transplantation surgery by improving precision, reducing graft trauma, and monitoring essential conditions.

This study found that hair implant needles with longer point lengths and smaller bevel angles required less total work for insertion, which corresponded with surgeons' perceptions of insertion force differences.

This article reviews methods such as stem cell implantation to enhance hair transplant donor supply but reports no new clinical findings.

This article reviews non-biodegradable progestational subdermal implants as long-acting contraceptives for women, discussing their effectiveness, associated side effects, and implementation challenges without reporting new clinical results.

This study describes a method to safely guard needles used in comedone extraction and scalp procedures during hair transplantation, aiming to prevent deep injuries and reduce patient fear.

This study reports that a new multi-slit knife for hair transplant procedures reduces surgical time and increases precision by enabling quick creation of equidistant "brick-pattern" sagittal slits.

This article discusses the ongoing debates among hair restoration surgeons on incision methods and presents no new research findings.

This article discusses the use of forceps in hair restoration surgery and does not report any new clinical results.

This case report describes a woman who developed a 5 cm patch of scalp hair loss four months after receiving an Implanon contraceptive implant, with no previous history of hair loss or scalp issues.

In this study, researchers introduced an ultrasound-guided technique for injecting hyaluronic acid fillers into the temple area to enhance safety and precision by visualizing filler placement in the interfascial space.

A 2 mm needle is effective and precise for skin injections.

PEMA handles on syringes improve comfort and efficiency in hair transplant procedures.

This study found that bioactive extracts from goat placenta, particularly when delivered via dissolving microneedles, enhanced fibroblast proliferation and skin regeneration without being toxic to skin cells, suggesting a promising dermal application for improving skin health.

This study found that the film-trigger applicator system enhanced drug delivery efficiency and skin penetration of dissolving microneedles compared to traditional patch systems in both lab and animal models.

This study concluded that the KNPs@M/G microneedle system offers a promising strategy for treating radiation-induced skin injury by promoting antioxidative, anti-inflammatory, and regenerative effects.

This study found that using the same number of needles as planned grafts in hair transplantation improved operation time, hair growth direction, and patient satisfaction among 56 patients, with a 95% graft success rate.

This study found that platelet-rich plasma microneedles promoted hair regrowth in mice by facilitating angiogenesis and cell proliferation, showing promise for a minimally invasive hair regeneration treatment.

This article describes a surgical technique combining CO2 SilkTouch Laser and Calvitron Hair Transplant System that offers a natural-looking hairline with moderate session length and minimal bleeding, but reports no new clinical outcomes.