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This study found that transverse sections of scalp biopsies, particularly looking at the anagen:non-anagen hair ratio and presence of pigment casts, effectively distinguish alopecia areata from androgenetic alopecia.

This Cochrane Review protocol aims to evaluate the effectiveness and safety of various treatments for alopecia areata through a network meta-analysis, but no specific study findings are reported yet.

This article reviews the use of dermoscopy as a noninvasive tool for diagnosing various types of nonscarring alopecia but presents no new clinical findings.

In this study, researchers identified elongated corkscrew hairs as a new trichoscopic pattern in immunosuppressed adults with chronic endothrix tinea capitis, which may help in earlier diagnosis and targeted mycological investigation.

In this study, researchers reported that dermatoscopy effectively differentiates between various types of alopecia and scalp disorders, offering a fast, minimally invasive diagnostic method that improves the standard of care and reduces the necessity for scalp biopsies.

This review article reports recent advancements in understanding, diagnosing, and treating various hair loss conditions, like androgenetic alopecia and alopecia areata, including their genetic factors and new therapeutic options, while also examining the impact of COVID-19 on hair loss.

This study found that diphenylcyclopropenone (DPCP) was more effective and better tolerated than dinitrochlorobenzene (DNCB) in promoting hair regrowth in patients with alopecia areata.

This article describes various hair and scalp examination techniques, including noninvasive, semi-invasive, and invasive methods, noting that trichoscopy is a simple, well-accepted, noninvasive technique for evaluating hair loss patients and monitoring treatment.

The document concludes that doctors should recognize congenital triangular alopecia to avoid unnecessary treatments, as it does not respond to steroids like alopecia areata does.

This article reviews the use of trichoscopy for diagnosing various types of alopecia and reports no new clinical results; it is suggested as a non-invasive method for diagnosis and monitoring treatment responses.

This review discusses trichoscopic features of hair disorders in individuals with dark skin phototypes and reports no new clinical results; the authors emphasize the need for more specific diagnostic criteria for these populations.

This study reported that different types of alopecia have distinctive dermoscopic patterns, which aids in their diagnosis.

This chapter reviews trichoscopic criteria and diagnostic features for various hair and scalp conditions, emphasizing their utility in non-invasive diagnosis, but reports no new clinical results.

This study found that treating damaged hair with maleic-modified amino silicone oil created a highly hydrophobic surface, reducing water content and improving hair's mechanical properties and thermal stability.

This review examines the roles and benefits of chitosan in cosmetics and oral hygiene, highlighting its potential in the cosmeceutical market, but it reports no new results.

This study found that a dopamine-methacrylated hyaluronic acid hydrogel enhances the efficacy of adipose-derived stem cells in promoting skin regeneration, potentially involving the Notch signaling pathway.

This study found that topical melatonin solution was associated with positive effects on hair density and reduction in hair loss for androgenetic alopecia, with good tolerability reported in several clinical trials.

This review focuses on the roles of amino acids, peptides, and proteins in cosmetics, highlighting their importance in skin health and their potential for development in personal care products due to their unique properties and biocompatibility.

This chapter discusses Bayesian networks, their properties, and how they enable probabilistic inference with continuous variables, but it reports no new findings.

This review reports on the effects of aging on hair characteristics such as pigmentation, growth, and structural properties across genders and ethnicities, highlighting the importance of scalp health and suggesting cosmetic solutions to improve the appearance of aged hair.

This study found that a hair-coating polyphenol complex significantly enhanced the mechanical strength, UV protection, and antistatic properties of damaged hair, suggesting potential benefits for hair treatment.

This study evaluated a hair mask containing rice germ oil GX-N and ferulic acid on damaged hair and found that rice germ oil GX-N improved hair characteristics after bleaching, UV, and heat exposure, but adding ferulic acid did not provide extra benefits.

This systematic review reported that probiotics, prebiotics, synbiotics, postbiotics, and dietary supplements may improve hair density and reduce dandruff severity in individuals with scalp disorders, potentially by modifying inflammation, oxidative stress, and microbiota composition; however, variability across studies limits the strength of these conclusions.

This study evaluated a levan-based polysaccharide, POLEVAN®, in shampoo formulations and reported that it significantly increased hair glossiness by 24%, allowed a reduction of surfactant content by up to 50% without affecting foam, and maintained scalp moisturization similar to hyaluronic acid in a clinical setting.

This study developed a novel hair-straightening shampoo incorporating a polyphenol–inorganic sulfate redox agent, finding that it effectively straightens hair while enhancing strength and reducing damage due to its protective polyphenol coating.

This study evaluated the protective effects of a hair conditioner containing rice derivatives on natural Caucasian hair using various analysis methods and found that the conditioner, especially with rice germ oil GX-N, effectively improved hair properties even under stress conditions like irradiation.

This study found that trichoscopy is effective for diagnosing androgenetic alopecia and alopecia areata, and it can also be used to assess the severity of androgenetic alopecia.

This case report highlighted two atypical childhood alopecia cases: congenital atrichia without papules and Bjornstad syndrome with alopecia areata; emphasizing diagnostic challenges, notably the absence of keratotic papules usually associated with congenital atrichia and the presence of alopecia areata in Bjornstad syndrome.

This study reported that Asian patients have few racial differences in trichoscopy compared to Caucasian patients, except for certain features like greater mean hair diameter and masking effects by normal skin color.

This study formulated and tested a natural herbal shampoo powder using Ayurvedic herbs like Shikakai and Amla, finding it effectively cleansed and conditioned hair without harsh chemicals, suggesting it as a sustainable alternative to conventional liquid shampoos.