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This study found that using near-infrared optics, specifically in the second NIR window, allows for effective noninvasive evaluation of intra-hair damage caused by cosmetic treatments, demonstrating distinct damage types and changes in hair condition due to chemical or thermal processes.

This study found that measuring hair thickness with a phototrichogram provided significantly thicker readings than using a micrometer caliper, suggesting that the phototrichogram may be more clinically useful for evaluating hair in patients undergoing hair transplantation.

This study developed a highly sensitive fluorescent assay for measuring enzyme activity in single hair follicles, allowing the efficient analysis of over 100 samples per day.

This study developed and validated a UV spectrophotometric method for accurately measuring finasteride and tamsulosin in solutions and tablets, demonstrating good sensitivity and precision.

This study observed that Koreans generally have lower hair density, larger diameter, and slower growth rate compared to Caucasians, providing useful baseline data for studying hair diseases and treatments.

New, cheaper method measures finasteride in tablets accurately and quickly.

This study developed and validated a simple, precise, and cost-effective UV spectrophotometric method for quantifying Minoxidil in bulk and pharmaceutical forms, reporting high accuracy with recovery rates between 99.57% and 100.55%, and a correlation coefficient of 0.9993.

In this study, researchers suggest that digital microscopy using visible light could offer a more objective approach to diagnosing hirsutism by quantifying terminal hair, with future research needed to assess its usefulness in women with the condition.

This study developed two sensitive spectrophotometric methods to accurately determine finasteride in pure and tablet forms, demonstrating linear response and compliance with ICH guidelines.

This study reported a simple and validated gas chromatography method to accurately measure finasteride in tablets, showing equivalency to the official method with no significant differences.

Method accurately measures finasteride in tablets using finasteride-BSA interaction.

This study developed a new spectrophotometric method to accurately measure finasteride levels in pharmaceutical formulations using a reaction with NBD-CL.

This study developed a rapid and sensitive method for determining finasteride concentrations in pharmaceuticals, with results comparable to those from the standard HPLC method.

Different lab conditions and light treatment methods change how human skin cells respond to light therapy.

This study found that in male androgenetic alopecia, the contrast enhanced phototrichogram technique was superior in detecting changes in hair density and thickness compared to other methods.

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

This study introduces a new intracavity frequency modulation technique for tunable picosecond optical parametric oscillators, enhancing chemical contrast in coherent Raman imaging by allowing real-time subtraction of background signals.

This study observed that skin pigmentation significantly attenuates bioluminescent signals in C57Bl/6 mice, complicating quantitative optical imaging and requiring consideration in experimental design.

This article explores the theoretical foundations of the ChromaLens Precision Mapping system for analyzing hair, but it does not present any new experimental findings.

This study developed a reliable HPLC-UV/Vis method to determine aluminum phthalocyanine chloride in skin, supporting its use in skin permeation studies for photodynamic therapy of cutaneous tumors.

Method quickly measures finasteride concentration in capsules.

This study developed and validated a second derivative spectrophotometric method for accurately estimating tamsulosin and finasteride in bulk and pharmaceutical formulations.

Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.

This study developed and validated a UV spectrophotometric method for accurately estimating Minoxidil in tablet form, showing linearity across concentrations from 1-6µg/ml.

This study evaluated a UV-Vis spectrophotometric method to measure minoxidil in compounded capsules from pharmacies in Pernambuco, Brazil, finding that while the formulations met weight criteria, most deviated significantly from declared minoxidil content, highlighting the need for robust quality control in compounded medicines.

This study introduces three spectrophotometric techniques for accurately determining finasteride and tadalafil in their combined pharmaceutical form, demonstrating their sustainability, sensitivity, and suitability for quality assurance, alongside a dissolution study following FDA guidelines.

This abstract presents supplementary materials illustrating trichoscopy in alopecia areata and scarring alopecia using different dermoscopy techniques but reports no clinical findings.

This source highlights the utility of cationic polymers in haircare products for protecting against hair damage from chemical treatments and grooming, and describes how microfluorometry can measure polymer deposition and penetration on hair fibers.