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This study developed a method using ultra-performance liquid chromatography and mass spectrometry to detect illegal substances in hair loss prevention cosmetics, revealing that some products contained high levels of minoxidil and finasteride, posing safety risks.

Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.

This study developed a sensor that effectively measures Tl+ cation in solutions with a wide dynamic range and low detection limit, responding linearly within the concentration range 1.0 × 10−8 to 1.0 × 10−1M.

This study reports that a new DART-HRMS method can effectively analyze intact hair for drug use timelines, with cocaine detection aligning with forensic standards and identifying multiple drugs from high-resolution data.

This study developed a rapid method using advanced chromatography and mass spectrometry to detect hair-growth enhancing compounds, discovering synthetic drugs in about 21% of tested supplements.

In this study, a strong correlation was found between the scores of two dermatology-specific quality of life instruments, DLQI and Skindex-16, suggesting they can provide complementary insights for assessing patients with skin diseases.

This study developed a new HPLC method for detecting prohibited substances like minoxidil and hydrocortisone in cosmetic products, achieving high sensitivity and successful application to real-world samples.

This study found that laser Doppler velocimetry can non-invasively predict topical minoxidil response by correlating scalp blood flow changes with sulfotransferase enzyme activity in women with pattern hair loss.

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

This review discusses various chemical and instrumental methods for determining macrolides and reports no new experimental results.

This study established and validated a visual scale to assess hair shedding in women with thick hair, finding it effective in distinguishing greater hair loss among women with female pattern hair loss compared to those without.

This study found that instrumental measurement methods effectively verified the efficacy of hair care products in repairing slightly damaged hair, showing consistent results with sensory assessments of gloss and frizz, and offering benefits like accuracy and quantifiability.

Hair shine can be measured by how it reflects laser light.

This study reported that analyzing hair cortisol levels using a validated online SPE LC-MS method provided a way to assess long-term hormone secretion in 114 healthy volunteers, with a median hair cortisol value of 4.76 pg/mg.

This study introduced new spectrophotometric methods to estimate Minoxidil in pharmaceutical forms, demonstrating its linearity across various buffers and solvents, and found these methods to be simple, economical, and effective according to ICH guidelines.

This study found that the FIA-amperometric method for minoxidil quantification in pharmaceutical preparations provided accurate results comparable to the conventional UV technique, indicating no systematic errors.

This study developed analytical methods to better understand hair treatment with cosmetic formulations, revealing that active agents primarily adsorb on the hair surface during short washes.

This review discusses the use of trichoscopy for diagnosing mimickers of patterned hair loss and assessing donor sites before hair transplant surgery, and reports no new clinical results.

This study found that line-field confocal optical coherence tomography effectively visualized key diagnostic features of classic lichen planopilaris in real time, suggesting its potential as a valuable diagnostic tool.

This study suggests that fractional infrared technology may effectively improve cervical skin laxity by enhancing dermal thickness without adverse effects in a small pilot group.

This study found that UV laser-induced fluorescence spectroscopy can effectively differentiate between types of alopecia in patients, showing a high correlation between blood circulation levels and tissue autofluorescence intensity.

This study developed and validated a sensitive HPLC–MS/MS method for detecting seven prohibited substances in cosmetic products.

This study describes a new method using high-resolution mass spectrometry for analyzing multiple steroids in human scalp hair, with newborn hair showing the highest steroid concentrations among examined age groups.

This study developed a new method using ultrahigh-power sonication and mass spectrometry to improve protein extraction from hair shafts, identifying 239 differentially expressed proteins related to fetal growth restriction, which were validated as potential noninvasive biomarkers for perinatal diagnostics.

This study found that fractional infrared technology may improve skin laxity and thickness in the cervical area without side effects in a small group of patients.

This review discusses the applications of confocal laser scanning microscopy in visualizing fluorescent compounds within the skin, noting its potential for tracking drug carriers and enhancing penetration studies, but reports no new results.

This study found that using sulfur 35 L-cystine for measuring linear hair growth is accurate, cosmetically acceptable, and safe in both experimental animals and humans.

This study found that maintaining tension-force balance in a human skin equivalent improved characteristics of skin homeostasis and structure, suggesting potential as an alternative to animal models for studying skin physiology.

In this study, the average force required to pluck hair was significantly lower in malnourished adults, especially those with kwashiorkor, compared to well-nourished individuals.

In this study using mice, researchers found that the Piezo1 channel regulates metabolic changes and immune cell infiltration during skin growth under tension, with altered expression of glycolysis-related genes and increased macrophage activity observed in stretched skin.