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This study found that applying castor oil to damaged hair increased tensile strength and decreased absorbance, indicating improvements in hair texture.

This study found that coloring white facial hair is an effective and feasible adjunct to intense pulsed light therapy for hair removal, with similar efficacy between using black eyeliner and black hair dye.

This study explains the formulation and evaluation of a natural polyherbal shampoo, which effectively colors hair and provides conditioning without the dermal and systemic toxicity risks of synthetic dyes, offering an effective alternative to conventional products.

This article discusses how drug molecules integrate into hair fibers, focusing on biological transport mechanisms and physicochemical factors, but reports no new experimental findings.

This chapter reviews hair anatomy, hair shaft structure, and various cosmetic treatments that can alter or damage hair, but it presents no new research findings.

This review covers various aspects of hair biology, pigmentation, and development, focusing on genetic and biochemical modulation of hair follicle components but reports no new findings.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

Twisting hair weakens it, but strength can be recovered at low twist levels.

A new method helps understand hair shine and various products improve hair care.

This paper discusses the use of Digital Volumetric Imaging with fluorescent dyes to visualize and compare the interior structures of six different virgin hair types, reporting no new clinical results.

This study observed that a polyherbal hair oil made from virgin coconut oil and extracts of nine different herbs demonstrated effectiveness in promoting hair growth with a cooling effect and no reported side effects, based on various evaluated properties.

Researchers created a reliable method to measure dexpanthenol and resorcinol in hair products.

This study established a novel in vivo "whisker follicle microinjection assay" using mouse whiskers to evaluate hair growth and pigmentation effects of various chemicals and proteins, identifying minoxidil, ruxolitinib, and RSPO1 as growth promoters, while deoxyarbutin inhibited pigmentation and Nbl1 emerged as a growth inhibitor.

This review discusses the harmful effects of coloring shampoos containing trihydroxybenzene on the scalp-skin barrier and emphasizes the need for safer ingredient selection to prevent side effects.

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 conducted among medical students in Saudi Arabia found a 37.2% prevalence of premature hair graying and associated it with smoking, a keto diet, hair coloring, and family history, while suggesting that lifestyle changes may reduce its impact.

This study reports that the TrichoScan method effectively measures hair growth parameters and detected significant improvements in hair counts and thickness in men with androgenetic alopecia after finasteride treatment.

This study found that adding 7% Ecklonia cava extract to oxidative hair dyes significantly reduced their cytotoxicity and oxidative stress without affecting color performance.

This study concluded that freeze-dried and natural forms of a hair growth promoter derived from traditional recipes have mostly similar chemical constituents.

In this observational study of medical students at the University of Muhammadiyah North Sumatra, no significant link was found between wearing headscarves and experiencing hair loss.

This study documented the use of 41 plant species in the West Bank for treating hair and scalp disorders, highlighting their folkloric significance and potential for new cosmetic and cosmeceutical products.

This study found that polyquaternium-68 at pH 9 achieved the greatest hair deposition, while polyquaternium-44 demonstrated the best wash resistance at pH 6.

This study suggests that Botox injections may increase hair count and reduce hair loss in men with androgenetic alopecia, potentially through increased blood flow and oxygen to the scalp.

This study found that scanning electron microscopy revealed significant hair shaft changes in women using straighteners, but not in those using hair dye, suggesting its utility in assessing chemical treatment effects on hair.

This study suggests that a herbal oil formulation combining various plant and oil ingredients may effectively promote healthy hair growth and address concerns like baldness, dryness, and dandruff, supported by favorable evaluations of its physical and chemical properties.

The document concludes that ideal facial proportions are guided by specific measurements and symmetry to enhance beauty, but individual characteristics must be considered.

This study found that Synsepalum dulcificum seed oil hair treatment significantly reduced hair breakage and improved hair health indices in women, outperforming both placebo and argan oil treatments.

This review discusses the side effects and diseases related to hairstyles and hair treatments among black women, highlighting the need for thorough examination by dermatologists, but reports no new clinical results.

This review discusses the unique dermatologic needs and conditions affecting women of color, noting specific skin and hair conditions but reports no clinical results.

The researchers reported creating a Human Hair Atlas that maps over 1200 molecular species in hair, revealing up to 50% variation in metabolite and lipid levels along the hair's length, and identified 122 exposome-related compounds from personal care products.