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This study identified a distinct "exogen" phase in the hair cycle during which hair shedding occurs, primarily coupled with the anagen phase, rather than as part of the telogen phase.

This study explored whether using topical minoxidil can temporarily increase hair shedding, but results are not reported.

Mimicking growth factors in a topical solution can prolong hair growth phase and reduce hair loss without side effects.

In this study, ceruloplasmin and keratin 4 were identified as markers that differentiate between growing and resting phases in cashmere goat hair follicles, with keratin 4 being a potential marker for the onset of a new hair cycle.

This review discusses various techniques for evaluating hair shedding and alopecia but reports no new clinical results. The authors emphasize the value of specific clinical and instrumental methods in assessing hair growth.

This study found that mice lacking the type 3 IP(3) receptor in their hair follicles experienced repetitive hair loss and regrowth, indicating disrupted hair-cycle regulation potentially linked to specific signaling pathways.

The authors concluded that chronic telogen effluvium in middle-aged women presents distinct clinical and histological features that differ from androgenetic alopecia and acute telogen effluvium.

This study introduces the concept of teloptosis, which influences hair shedding during the telogen phase and affects hair density, highlighting that early or delayed teloptosis has noticeable effects.

This clinical study found that Rosmarinum officinalis mother tincture significantly improved hair volume and density in individuals with diffuse hair loss by enhancing hair parameters measured through a hair shedding visual scale and ponytail thickness test.

This study found that the ENERGI-F701 solution significantly increased hair density and reduced hair shedding in women with female pattern hair loss, with fewer local skin reactions compared to Regaine® 2% minoxidil, suggesting its effectiveness and safety as a treatment option.

This article discusses the hair cycle of mice and its relevance in studying experimental carcinogenesis sequences, but it reports no new research findings.

This chapter reviews the anatomy and physiology of hair follicles but reports no new research findings or clinical results.

This review discusses recent advances in hair follicle research, highlighting therapeutic and cosmetic applications, but reports no new study results.

This study found that a food supplement improved skin moisturization, elasticity, and thickness, reduced telogen hair density, and enhanced nail status in women with mild-to-moderate aging signs after 84 days.

This study found that Cudrania tricuspidata and Sargassum fusiforme extracts significantly increased hair growth and related gene activity in C57BL/6 mice, suggesting potential use in alopecia treatment.

Many new moms lose hair after childbirth due to hormonal changes, but it usually grows back within a year.

This review discusses Dr. Gill Westgate's background in hair growth regulation and industry experience, but reports no new findings or results.

This review discusses the various triggers and diagnostic challenges in determining the cause of telogen effluvium-related hair loss, without providing new clinical results.

This study found that in mice, inactivating beta-catenin in the dermal papilla reduces hair follicle progenitor proliferation and disrupts the hair cycle.

This study found that individuals with androgenic alopecia have an increased number of thin hairs (less than 40 microns in diameter) per cm², which may affect their clinical appearance.

This review discusses the role of estrogens in hair follicle cycling and the skin, highlighting the need for more research on estrogen signaling pathways and their interactions with other factors in hair biology.

This article reviews common causes of hair loss, noting that a well-directed history and examination are often sufficient for diagnosis, and reports no new clinical findings.

This study found that a stochastic follicular automaton model replicates hair follicle cycle fluctuations, with deterministic simulations aligning with steady-state levels as follicle numbers increase.

This study identified distinct gene expression patterns in wool follicle bulbs that may play important roles in wool follicle cycling and regeneration in sheep.

In this study, researchers used a rodent model to uncover key changes in how hair fibers detach, suggesting that the exogen phase should be subdivided based on club fiber status.

This study identified that blocking the PTGDR2 receptor in human hair follicles in vitro and in mice reversed the hair growth inhibition caused by PGD2, suggesting a potential approach for treating alopecia.

In this study, researchers found that IGFBP‐rP1 levels were lower in individuals with androgenic alopecia compared to healthy controls, and subcutaneous injection of IGFBP‐rP1 showed potential in slowing hair loss progression in a mouse model by affecting the hair cycle transition.

This study observed that applying a GMP-grade botanical extract to the scalp increased Bcl-2 levels, potentially preventing premature hair follicle apoptosis in chemotherapy and radiotherapy-induced alopecia.

This article discusses the influence of estrogens on hair follicle growth and metabolism, suggesting a significant role alongside androgens in hair growth control but reports no new clinical results.

This review discusses the physiological skin changes during pregnancy and reports no new clinical results, emphasizing the importance of distinguishing these changes from pathological conditions.