Laser-Assisted Hair Regrowth

This article updates Japanese guidelines for diagnosing and treating male and female-pattern hair loss, recommending specific drugs and therapies while advising against certain treatments for female-pattern hair loss.

This review discusses the use of platelet-rich plasma for facial rejuvenation, acne scarring, and androgenic alopecia and reports positive outcomes but emphasizes the need for standardized preparation and application methods.

This study observed hair regrowth and increased density in four cases of androgenetic alopecia treated with a non-ablative erbium glass fractional laser and topical finasteride, with no significant side effects reported.

This study concluded that 12 sessions of fractionated thulium laser treatment improved hair density and thickness in patients with pattern hair loss, with further benefits from adding a growth factor solution post-treatment.

This review discusses the psychological impact of alopecia on women and reports no new clinical findings, highlighting the effect on self-esteem and quality of life.

This article discusses advancements in hair restoration, highlighting the use of robotics and follicular unit extraction along with adjuvant therapies like platelet-rich plasma, but presents no new clinical findings.

In this study, patients with mild to moderate androgenetic alopecia who received platelet-rich plasma injections with microneedling showed improvements in hair growth and thickness, as well as high satisfaction, over a three-month period compared to conventional therapy non-responders.

This study found that combining ablative fractional CO₂ laser therapy with hair growth factors significantly increased hair density in men with androgenetic alopecia compared to using growth factors alone.

This study found that combining microneedling with PRP and topical minoxidil (5%) significantly improved hair growth in men with androgenetic alopecia compared to using minoxidil alone.

This study found that finasteride was associated with more reproductive adverse effects, including sexual dysfunction in men and fetal harm in women, compared to minoxidil in reported alopecia cases.

This study found that micro-needling with cosmeceuticals or platelet-rich plasma significantly improved wrinkles, skin laxity, scar softening, and hair growth over 12 months, with minimal side effects, and that the best results occur with pigment and platelet massaging between 5 to 30 minutes post-treatment.

This review introduces an integrated view of hair follicle behavior, highlighting a Yin Yang model of regulation and suggesting glycans as key elements in hair follicle growth control, without reporting new clinical findings.

This study concluded that ablative fractional lasers may induce hair regrowth in mice by activating the Wnt/β-catenin pathway.

In this study, the researchers found that the effectiveness of a 1,550-nm fractional laser in promoting hair growth in mice depends on the specific combination of beam energy and density, with inappropriate settings potentially causing ulcers or hair follicle injury.

This study found that the 2,940 nm erbium: YAG laser may promote hair growth in C57BL/6 mice by speeding up transitions in the hair cycle and increasing hair follicle numbers.

In this study, topical application of fibroblast growth factors was found to promote hair growth by inducing and prolonging the anagen phase in telogenic C57BL/6 mice, suggesting potential as hair growth-promoting agents.

This review discusses current medical and surgical treatments for androgenetic alopecia, highlighting the use of finasteride and minoxidil for men and the role of hair transplantation techniques, without providing new clinical results.

This review evaluates six primary studies on androgenetic alopecia treatments and suggests topical minoxidil or finasteride as first-line options, recommending further research into treatments and practice guidelines.

This study found that treatment with a 1550 nm fractional erbium–glass laser increased hair density and thickness in women with female pattern hair loss, suggesting it may be an effective and safe option.

This study suggests that a 1,550-nm fractional erbium-glass laser may stimulate hair growth in both an alopecia mouse model and human subjects with male pattern hair loss, though further research is needed to determine its clinical applications.

This review discusses the histopathological diagnosis of scarring and non-scarring alopecias, emphasizing the importance of adequate tissue sampling and clinical information; it reports no new empirical results.

This review discusses laser/light treatments for pattern hair loss and reports no clinical validation of current devices; experts recommend physician evaluation to exclude other medical conditions.

In this study, 1 mg/day finasteride lowered serum PSA concentration in men aged 40–60, suggesting that PSA adjustment recommendations for prostate cancer screening using 5 mg/day finasteride should also apply to this lower dose for hair loss treatment.

This study found that long-term finasteride treatment in men with androgenetic alopecia significantly increased hair weight and count compared to placebo over nearly four years.

In this study, finasteride 1 mg/day for 12 months did not improve hair growth or slow hair thinning in postmenopausal women with androgenetic alopecia compared to placebo.

Hair loss in androgenetic alopecia is caused by genetic factors and androgen excess, and can be treated with combined therapies.

This study observed that two out of twelve patients showed hair growth without the usual shedding after hair transplant surgery when treated with topical minoxidil, suggesting its potential as an adjunctive therapy during recovery.