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This systematic review found that while hair transplantation in patients with lichen planopilaris may serve as a cosmetic option, there is a notable decline in graft survival rates after two years, and the data currently lacks prospective studies for stronger evidence.

This study highlights that topical melatonin formulations have the potential to increase hair density, prolong the hair growth phase, and reduce shedding in adults with alopecia, while generally being safe, though further large-scale randomized trials are needed to confirm its clinical efficacy.

This study examined five patients with cicatricial alopecia treated using the follicular unit extraction technique, finding an average graft survival rate of 64.2% and acceptable transection rates, despite the procedure's challenges compared to non-scarring alopecia.

This study found that using intraoperative platelet-rich plasma in follicular unit extraction hair transplantation significantly improved graft survival, accelerated hair regrowth, and increased patient satisfaction compared to the procedure without PRP.

This review discusses the integration of robotics and AI in robotic follicular extraction for hair transplantation, highlighting improved precision and efficiency but reports no new clinical results.

Sapphire blades, double-forceps, and personalized procedures improve hair transplant success and satisfaction.

This registered trial will investigate whether preoperative botulinum toxin can improve hair transplantation outcomes by enhancing blood flow and reducing ischemia in the scalp.

This article outlines a randomized trial to evaluate whether preoperative botulinum toxin administration can improve hair transplantation outcomes by reducing ischemia-induced graft failure.

In this review, recent innovations in hair transplantation, such as AI-assisted graft selection, robotic systems, stem cell therapy, and advanced drug delivery techniques, are reported to enhance hair density and thickness for more natural results and higher patient satisfaction by addressing limitations of traditional methods.

This study outlines a randomized trial investigating the effects of botulinum toxin administered before hair transplantation to potentially improve outcomes by enhancing blood flow and reducing graft failure due to ischemia in androgenetic alopecia patients.

This study outlines a randomized trial to assess if administering botulinum toxin before hair transplantation can improve outcomes by enhancing blood flow and reducing ischemia-induced graft failure in patients with androgenetic alopecia.

This study explores the hypothesis that preoperative administration of botulinum toxin could enhance hair transplantation outcomes by improving scalp microenvironment and reducing ischemia-induced graft failure, using a randomized split-scalp controlled trial design.

This systematic review suggests that platelet-rich plasma may improve hair density, follicle survival, and hair growth when used with hair transplantation, though varied methods and lack of standardized evaluation limit the findings.

In this study, the use of rb‐bFGF in hair transplantation significantly increased follicle survival, reduced hair loss, improved patient satisfaction, and decreased complications compared to controls, in patients with androgenetic alopecia over a 12-month period.

Platelet-rich plasma may improve hair transplant results.

This study found that the manual hair transplantation method HFE may offer better precision and cosmetically satisfying results with minimal tissue trauma for treating androgenetic alopecia in men.

In this case report, an 8-year-old girl with burn-induced cicatricial alopecia showed improved graft survival after hair transplantation due to preparatory microfat grafting, which enhanced tissue conditions and possibly increased follicular unit survival rates to about 80%, higher than typically expected.

This study concluded that incorporating platelet-rich plasma into follicular unit extraction improved scar tissue texture and quality but did not significantly enhance hair restoration results in non-androgenic alopecia.

This study found that using PRP with the FUE method of hair restoration led to better graft survival, aesthetic outcomes, and patient satisfaction compared to not using PRP.

This study conducted in Pakistan found that innovative hair transplantation techniques, incorporating body hair and strategic extraction angles, significantly improved graft survival and patient satisfaction compared to traditional methods in men with poor donor site density.

This study found that long-hair follicular unit excision for hairline restoration resulted in high patient satisfaction, with a 93% graft survival rate and improved quality of life scores postoperatively.

This study found that among over 10,000 hair transplantation patients, only four cases of scalp necrosis occurred, highlighting that timely diagnosis and treatment can prevent serious complications and improve outcomes, with most cases resolving within 2–3 weeks.

This study explains surgical techniques for hair transplantation using the sharp implanter method, emphasizing 11 key principles that optimize efficiency and precision, and reports high graft survival and natural hair density when these principles are followed.

This study found that Cannabidivarin (CBDV) promotes neuronal survival, proliferation, and differentiation via TRPV1 activation but inhibits oligodendrocyte differentiation in postnatal neurogenesis.

This article discusses the potential surgical risks of hair replacement surgery and outlines methods to prevent these complications, but it reports no new data or clinical results.

This paper discusses factors for successful graft production in hair restoration but presents no new findings, emphasizing the importance of technical knowledge and skilled surgical teams for optimal results.

This study found that steroid hormones influence the quality indicators of fresh and cryopreserved stallion sperm, with testosterone negatively correlated with motility and estradiol positively correlated with survival rate.

This research outlines common issues following hairline transplants, including disproportionate facial appearances and donor site deficiencies, and suggests that doctors guide patients to consider realistic hairline heights and future hair loss.

This paper discusses the challenges of hair transplantation in burn patients due to issues like scar tissue's mechanical properties, but reports no new clinical findings.

Krox20 is crucial for hair growth and maintaining skin stem cells.