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This study developed a faster method for analyzing fatty acid ethyl esters in hair to help detect alcohol consumption levels, showing potential for applications in forensic and clinical settings.

This article describes a new method for staining hair fibers that visualizes keratin filaments without the need for OsO4 fixation or sulfur bond breakage, but it provides no new experimental results beyond the method itself.

This study proposed a simple, rapid permanganometric method for determining minoxidil concentrations in pharmaceutical samples, offering comparable accuracy to chromatographic methods with recovery rates of 94.5 to 95.2%.

This study developed and validated a Gas Chromatography-Flame Ionization Detection method for assessing minoxidil, which shows good precision, accuracy, and specificity for quality control and pharmacokinetic studies.

This study developed a new measurement procedure using isotope dilution-liquid chromatography-tandem mass spectrometry for accurate quantification of DHEAS in human serum or plasma, demonstrating high selectivity, sensitivity, and low measurement uncertainty, making it suitable for routine standardization and clinical evaluation.

This study presents three spectrophotometric methods for determining finasteride in bulk and tablet forms, showing a linear relationship between absorbance and finasteride concentration.

This study developed a new permanganometric method for determining minoxidil in pharmaceutical formulations, offering a simple and rapid alternative to chromatographic procedures with recovery rates between 94.5% and 95.2%.

This study demonstrated that a flow injection method using potassium permanganate for detecting minoxidil provided accurate recoveries and agreed closely with HPLC results, showing potential for effective analysis of commercial samples.

This study developed a fast and sensitive ultra-high performance liquid chromatography method to quantify ketoconazole in antidandruff emulsions, showing comparable results to labeled concentrations.

This study describes a capillary GC method for accurately measuring spermidine levels in hair lotions, confirming its precision and specificity for this application.

This study developed a method using LC/APCI-MS to measure the activity of steroid 5α-reductase, applied to kinetic studies and inhibitory tests with Finasteride in a rat prostatic enzyme model.

This study developed a non-destructive X-ray fluorescence technique to quantitatively analyze elemental content in human hair and constructed a database of element concentrations in healthy Swedish, Caucasian individuals.

This study presents a rapid method for detecting multiple xenobiotics in urine, effectively identifying 45 compounds banned in sports with detection limits below WADA's performance levels.

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 new method using liquid chromatography-tandem mass spectrometry to measure multiple steroid hormones in hair, requiring significantly fewer strands than previous methods, with high accuracy and precision.

This study developed and validated a sensitive liquid chromatography–mass spectrometry method to measure aristolochic acid‐I in rat plasma, successfully applying it to pharmacokinetic research.

This study developed a precise and reproducible method for estimating finasteride in tablet formulations using a colorimetric reaction with specific reagents.

This study developed a faster method to analyze fatty acid ethyl esters in human hair, potentially distinguishing alcohol consumption levels more efficiently.

This study developed a sensitive method using LC-ESI-MS/MS for accurate and reliable measurement of nine steroid hormones in children's serum.

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.

This study developed and validated a simple, cost-effective UV–Visible spectrophotometric method for estimating finasteride in pharmaceuticals, demonstrating good linearity, accuracy, precision, and sensitivity according to ICH guidelines, making it suitable for routine quality control.

This study developed three spectrophotometric methods to effectively measure finasteride in bulk and tablet forms, providing accurate results that align closely with labeled claims.

This study used novel methods to detect and map iodine concentrations in pig skin, finding iodine present in the coating, stratum corneum, and tissue around hair follicles.

This study developed and validated a simple and cost-effective spectrophotometric method to accurately determine Aminexil in cosmetic formulations containing niacinamide and pyridoxine.

This study developed a new, simple, and economical RP-TLC method with densitometry that is suitable for routine analysis of finasteride in tablet dosage form, meeting analytical validation criteria.

In this study, the researchers reported that their proposed methods accurately determined the studied drug with good recovery rates despite the presence of oxidative degradation products.

This study developed and validated a high-resolution mass spectrometry method to screen for prohibited substances and analyze six endogenous steroids in urine according to World Antidoping Agency requirements, demonstrating its effectiveness for antidoping analysis.

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 reports an easy colorimetric method for detecting nitrite in water using minoxidil, which may be suitable for various analytical applications due to its effective detection range.

This study found that four bacterial isolates from a microbiology laboratory collection demonstrated resistance to selenate, with molecular analysis showing they closely resemble different strains of Bacillus megaterium.