45 citations
,
June 2008 in “Journal of pharmaceutical and biomedical analysis” 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.
45 citations
,
August 1994 in “Journal of Chromatography B: Biomedical Sciences and Applications” Method detects finasteride in plasma and semen with high sensitivity and accuracy.
29 citations
,
February 1996 in “Journal of Chromatography B: Biomedical Sciences and Applications” This study developed a fully automated HPLC method for accurately quantifying finasteride in human plasma, achieving a detection limit of 1 ng/ml with validated application in pharmacokinetic studies.
19 citations
,
May 1991 in “Journal of Chromatography B: Biomedical Sciences and Applications” This study developed and validated an HPLC method for detecting a novel 5α-reductase inhibitor in human plasma, supporting its pharmacokinetic evaluation at low doses.
18 citations
,
July 2009 in “Drug Metabolism and Disposition” This study identified previously unknown phase I and phase II metabolites of finasteride in human bile and urine using a specialized bile collection technique and advanced mass spectrometry analysis.
13 citations
,
November 2006 in “E-journal of Chemistry” This study developed a rapid and sensitive HPLC method for measuring finasteride in bulk and tablet forms, showing high precision and accuracy compared to the official method.
9 citations
,
February 2018 in “Journal of Pharmaceutical and Biomedical Analysis” This study validated a highly selective and fast LC–MS/MS method for accurately measuring levels of tadalafil and finasteride in human plasma, adhering to international bioanalytical guidelines.
9 citations
,
January 1999 in “Journal of Liquid Chromatography & Related Technologies” This article discusses using high performance liquid chromatography to optimize mobile phase composition for separating synthesis products of Finasteride, without reporting new clinical results.
7 citations
,
April 2022 in “Journal of pharmaceutical and biomedical analysis” 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.
5 citations
,
February 1992 in “Journal of chromatography A/Journal of chromatography” This study developed a rapid, precise, and specific chromatographic method to measure alpha-tocopheryl nicotinate in cosmetics, using alpha-tocopheryl acetate as an internal standard.
4 citations
,
May 2020 in “Medicine in Drug Discovery” This study found that arylsulfatase enzymes in hair follicles can convert the active form of minoxidil back to its inactive form, potentially affecting its effectiveness in treating androgenetic alopecia.
2 citations
,
August 1987 in “Analytical Biochemistry” This study introduced a method to isolate and separate microfibrillar proteins from human hair, identifying previously undetected glycine- and tyrosine-rich proteins.
1 citations
,
April 2015 in “Drug research” This study concluded that two different pharmaceutical formulations of finasteride were bioequivalent in terms of rate and extent of absorption based on pharmacokinetic evaluations in a randomized crossover study with 38 volunteers.
1 citations
,
December 2011 in “Arzneimittelforschung” This study developed a sensitive HPLC-MS/MS method for determining cyproterone acetate levels in human plasma and found no significant difference in its concentration between two oral formulations in bioequivalence testing.
August 2025 in “İstanbul Gelişim Üniversitesi Sağlık Bilimleri Dergisi” In this study, the researchers developed a chromatographic method to determine α-tocopherol and α-tocopheryl acetate in pharmaceutical capsules with high accuracy and repeatability, establishing it as a reliable alternative for analyzing these compounds.
June 2025 in “Indian Journal of Heterocyclic Chemistry” In this study, researchers developed a precise and rapid method for simultaneously analyzing minoxidil and finasteride in local therapeutic formulations, ensuring that the excipients did not interfere, making it suitable for routine quality control.
January 2014 in “China Surfactant Detergent & Cosmetics” This study established a method using reversed-phase high performance liquid chromatography to determine finasteride concentration in hair cosmetics, showing a strong linear relationship with mass concentration and recoveries between 90.3% and 102.0%.
January 2011 in “Journal of Jiangnan University” This study developed a validated method for analyzing minoxidil in hair care cosmetics, demonstrating good precision and recovery rates.
January 2005 in “Fuzhou daxue xuebao. Ziran kexue ban” This study developed a rapid and efficient in vitro method using high-performance liquid chromatography to screen for steroid 5 alpha-reductase inhibitors, determining inhibition constants for Finasteride and Epristeride.
1 citations
,
March 1997 in “Journal of Chromatography B: Biomedical Sciences and Applications” This study discovered that the disposition of LY191704 enantiomers in rats and dogs is both stereoselective and species specific.
10 citations
,
January 2019 in “Journal of Chromatography B” This study used a newly validated method to find that one-year finasteride treatment resulted in no significant differences in urinary androgen and prostaglandin levels between male pattern baldness patients and normal controls.
September 2025 in “Chinese Journal of Chromatography” This study developed a method using ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MRM-IDA-EPI) for the rapid and sensitive detection of 13 JAK inhibitors in anti-alopecia cosmetics, showing excellent separation and accurate quantification with high recovery rates in tested matrices.
19 citations
,
July 2005 in “Steroids” In this study, researchers developed a sensitive LC–MS–MS assay to measure 3α-androstanediol levels in rat plasma and observed that testosterone raises these levels via a 5α-reductase pathway.
This study found no significant difference in urinary androgen and prostaglandin levels between male pattern baldness patients treated with finasteride for one year and normal controls.
January 2015 in “CHINESE JOURNAL OF ANALYTICAL CHEMISTRY (CHINESE VERSION)” This study developed a rapid and reliable ultra high performance liquid chromatography method for analyzing 17 key ingredients in hair growth cosmetics.
9 citations
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January 1983 in “Journal of Chromatography B Biomedical Sciences and Applications” This study found that enzyme activity related to cancer induction by polycyclic aromatic hydrocarbons can be increased by using a shampoo containing crude coal tar and significantly inhibited by imidazole compounds in human hair follicles.
November 2024 in “African Journal of Biomedical Research” 18 citations
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April 2009 in “Journal of Chromatography A” Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
5 citations
,
January 2012 in “PubMed” This study developed and validated a reliable method using chromatography and mass spectrometry to accurately measure finasteride levels in human plasma.
2 citations
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January 2016 in “Scientifica” Researchers created a reliable method to measure dexpanthenol and resorcinol in hair products.