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In this study, researchers administered eight sessions of intradermal injections containing growth factors into the scalp of 1000 patients, reporting a significant reduction in hair fall in 83% of participants and increased total hair count and shaft diameter, with promising tolerance and safety.

This study found that 6-gingerol, a component of ginger, suppresses hair growth rather than promoting it, both in vitro and in vivo, suggesting potential use in hair removal treatments.

This study explored the use of "microfollicles," a human hair follicle organoid model, as an in vitro tool for testing hair-growth substances, finding up to 75% overlap in gene expression changes with human clinical biopsy responses to minoxidil, indicating its potential for pre-clinical substance testing.

In this study, the herbal complex of Houttuynia cordata, Perilla frutescens var. acuta, and green tea promoted hair growth in C57BL/6 mice, enhancing regrowth and follicle development compared to controls.

This study investigated the effects of the herbal formulation DA-5512 on hair growth, finding that it significantly promotes dermal papilla cell proliferation and stimulates hair growth in mice while showing efficacy and safety in human trials compared to placebo and minoxidil (3%).

In this study, a herbal extract mixture significantly reduced IL-1α gene expression in HaCaT cells, suggesting it may aid in the treatment of nonscarring alopecia.

In this study, XMU-MP-1 unexpectedly reduced cell proliferation and altered cell cycle progression in a model human hair follicle, possibly due to off-target kinase inhibition.

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 on female Wistar rats with stress-induced alopecia found that a modified diet rich in antioxidants and nutrients reduced dystrophic skin changes and preserved the functional activity of hair follicles, suggesting dietary approaches may support hair restoration under chronic stress conditions.

This study found that male patients with hair loss often had lower levels of vitamins D and B12, suggesting these deficiencies should be tested for in treatment evaluations.

This study found that Rubus coreanum extract promotes hair growth in mice, but its effects are not due to inhibition of specific enzymatic activities or growth factor expression.

This article discusses the treatment of androgenetic alopecia and alopecia areata with finasteride and minoxidil but reports no new clinical results.

PGD2 stops hair growth and is higher in bald men with AGA.

This study demonstrates that inhibiting SFRP1 with the antagonist WAY-316606 enhances hair growth in human scalp hair follicles ex vivo by facilitating Wnt signalling.

This study reports that C3H/HeJ mice and DEBR rats serve as effective models for screening potential treatments for human alopecia areata, despite certain challenges in predictability and cost.

This proposal reviews current knowledge and suggests actions for managing chemotherapy‐induced alopecia but reports no new clinical results, highlighting the need for evidence‐based guidelines.

This study developed a 3D engineered hair follicle model that mimics the native hair bulb and may aid in drug screening for hair growth therapies.

This study found that intermediate hair follicles are morphologically distinct from terminal follicles and offer a novel model for developing new alopecia therapies despite being technically more challenging to study.

This study suggests that skin sections from 4-week-old C3H mice could serve as an in vitro model for human androgenic alopecia, as minoxidil partially reverses suppressed hair follicle elongation.

This review discusses various approaches to treating alopecia, including drug therapy and hair transplantation, but reports no new research findings; the authors highlight the need for novel techniques like cell culturing.

In this study, 7-phloroeckol, derived from marine brown algae, was found to promote hair growth by increasing cell proliferation and hair shaft elongation in cultured human hair follicles.

This study found that the synthetic thyroid hormone receptor modulator KB2115 significantly prolonged the growth phase of human hair follicles in culture without altering mitochondrial activity, suggesting potential as a safer hair loss treatment compared to traditional thyroid hormones.

This study observed that nicotinamide can effectively inhibit human hair growth and promote hair follicle regression in cultured human scalp models without negatively affecting epidermal vitality, suggesting its potential as a hair growth inhibitor in cosmetic applications.

This study observed that dermal papilla cell aggregates showed increased viability and gene expression on softer 3D substrates, indicating the importance of substrate stiffness in cellular behavior.

This study demonstrated that high doses of L-cystine and vitamin B6 effectively prevent doxorubicin-induced hair loss in mice.

This review discusses the relationship between acne, body hair, and androgenic stimulation in adolescent girls, emphasizing treatment decisions based on disease severity rather than endocrine findings.

This study found that direct interactions between human dermal papilla cells and melanocytes under low oxygen conditions improved cell functions and could be important for hair regeneration efforts.

This study observed that downregulation of laminin-511 plays an important role in hair regression during the catagen stage in mice.

This study demonstrated that Gelfoam® histoculture supports extensive growth of both hair shafts and sensory nerves from isolated mouse whisker follicles over prolonged periods.

This study found that Oriental melon leaf extracts promoted hair growth in a mouse model and cultured human hair follicles, suggesting potential use as a treatment for hair loss.