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This review discusses the roles of distinct immune cell types in skin wound healing, highlighting findings from animal studies, but provides no new clinical results.

This review indicates promising potential for cinnamon supplementation to improve metabolic outcomes in PCOS, but more clinical trials with higher doses and longer durations are needed to confirm these effects.

This study found that both microneedling and microneedling with platelet-rich plasma improved hair thickness and density in male pattern alopecia, but no additional benefit was observed with the addition of platelet-rich plasma.

This study aimed to assess whether using minoxidil alongside nutritional cyclical supplements could boost hair regrowth without antiandrogens or enzyme blockers, focusing on hair root strengthening. Results are not reported.

This randomized controlled trial found that consuming *Gynostemma pentaphyllum* extract significantly improved hair elasticity, density, and diameter over 24 weeks without severe adverse events, suggesting it as a safe functional food ingredient for hair health improvement.

The researchers reported an optimized depilation procedure using cold wax and an extra skin protection step that minimizes injury in mice, revealing similar hair cycle kinetics across strains and supporting the use of Sv129 and B6129F1 mice in hair growth studies.

This study found that using autologous micrografts from scalp tissues significantly improved hair thickness and density in patients experiencing telogen effluvium following COVID-19, with notable improvements observed over a 6-month follow-up period.

This review examines experimental studies on the synergistic use of platelet-rich plasma and adipose-derived mesenchymal stem cells for wound healing in animal models, without reporting new clinical outcomes.

This study reports that Broussonetia papyrifera extract significantly increased hair count over 12 weeks in a small clinical trial and promoted dermal papilla cell proliferation in vitro by regulating WNT-β-catenin and STAT6 pathways.

This study found that Camellia seed cake extract may counteract DHT-induced effects in cultured dermal papilla cells, suggesting potential to prevent or alleviate androgenetic alopecia.

This study observed that oral administration of BeauTop, a Chinese herbal medicine, significantly increased hair growth indicators, including VEGF expression, hair follicles, and hair coverage in C57BL/6 mice.

This review discusses the potential efficacy and applications of platelet-rich plasma in dermatology, highlighting its use in various skin conditions but reporting no new clinical results; the authors call for standardization of preparation and treatment methods.

This review highlights that microRNAs (miRNAs) play crucial roles in hair follicle development and cycling in cashmere goats, detailing recent advances in understanding their regulatory functions and potential applications in improving cashmere fiber quality and diagnosing hair disorders.

This review article outlines grooming practices and treatments for pseudofolliculitis barbae, noting that while discontinuing shaving is an effective approach, those who cannot do so may benefit from adjusted shaving techniques, chemical depilatories, or laser therapies.

In this study, researchers identified two genetic mutations associated with producing finer and denser wool in fine-wool sheep, involving the genes KRT74 and EDAR, which may guide future breeding efforts to enhance wool quality.

This study found that administering lower doses of sodium pentaborate pentahydrate increased hair growth in rats via specific molecular pathways, while a higher dose suppressed these pathways and impaired hair growth.

Personalized medicine is important for treating skin disorders, with new treatments and connections to hormones and genetics being explored.

In this study, 5-aminolevulinic acid photodynamic therapy did not improve hair growth in patients with androgenetic alopecia but was safe and slightly reduced scalp sebum secretion.

This study suggests that autologous fat transfer can significantly enhance hair growth in patients with scarring alopecia, offering more consistent and predictable results when combined with hair transplantation.

This chapter reviews the clinical effects of androgens like testosterone and its metabolites on various body systems and life stages, but reports no new results.

Genetic studies on hair traits can improve understanding of health and disease.

This study explores the transformative role of tissue engineering in cosmetics, highlighting innovations like lab-grown skin and personalized grafts that enhance product efficacy, offer ethical alternatives to animal testing, and address aesthetic issues such as scarring and aging.

This study reported that Nyumi Happy Hair Gummies improved hair growth, thickness, density, and gloss in adults with hair fall, while also reducing hair fall and enhancing nail health, without any adverse effects reported during the trial.

This meta-analysis reported that stem cell-derived conditioned medium effectively increases hair density and thickness in patients with alopecia, with longer treatment durations showing greater improvements.

This study found that hair care products containing fermented papaya, fermented mangosteen, and caffeine significantly inhibited hair loss, increased hair density and thickness, and improved hair follicle structure in individuals with androgenic or diffuse alopecia over three months compared to placebo and caffeine controls.

In this animal study, applying a combination of inositol-stabilized arginine silicate complex and magnesium biotinate promoted hair growth but not nail growth.

This study reports that monthly subcutaneous injections of concentrated growth factors improved hair appearance and density in patients with androgenetic alopecia, with no side effects observed in the follow-up period.

This commentary reviews clinical trials on platelet-rich plasma treatments for androgenetic alopecia and emphasizes the need for standardized preparation methods and concentrations; it reports no new clinical results.

Fat-derived stem cell therapies can potentially increase hair growth and thickness in people with hair loss.

Fat-derived stem cell therapies can potentially increase hair growth and thickness in people with hair loss.