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Glossary High-Performance Liquid Chromatography

technique separating mixture components using high-pressure liquid flow

High-Performance Liquid Chromatography (HPLC) is a technique used in analytical chemistry to separate, identify, and quantify components in a mixture. It involves passing a liquid sample through a column filled with a solid adsorbent material under high pressure, allowing different substances to be detected based on their interaction with the adsorbent. This method is widely used in pharmaceuticals, environmental testing, and food safety to ensure the purity and concentration of various compounds.

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Research

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High-Performance Liquid Chromatography–Diode Array and Electrospray-Mass Spectrometry Analysis of Non-Allowed Substances in Cosmetic Products for Preventing Hair Loss and Other Hormone-Dependent Skin Diseases

research High-performance liquid chromatography–diode array and electrospray-mass spectrometry analysis of non-allowed substances in cosmetic products for preventing hair loss and other hormone-dependent skin diseases

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.

Picogram Determination of Finasteride in Human Plasma and Semen by High-Performance Liquid Chromatography with Atmospheric-Pressure Chemical-Ionization Tandem Mass Spectrometry

research Picogram determination of finasteride in human plasma and semen by high-performance liquid chromatography with atmospheric-pressure chemical-ionization tandem mass spectrometry

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.

High-Performance Liquid Chromatographic Determination of Finasteride in Human Plasma Using Direct Injection with Column Switching

research High-performance liquid chromatographic determination of finasteride in human plasma using direct injection with column switching

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.

research High-performance liquid chromatographic method for the determination of finasteride in human plasma at therapeutic doses

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.

Identification of Finasteride Metabolites in Human Bile and Urine by High-Performance Liquid Chromatography/Tandem Mass Spectrometry

research Identification of Finasteride Metabolites in Human Bile and Urine by High-Performance Liquid Chromatography/Tandem Mass Spectrometry

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.

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community Peptides that Stop Hair Loss? | In-depth Literature Review Video

76 upvotes 2 years ago

Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.

community Why is everyone not directly advised Dutasteride?

in Finasteride/Dutasteride 169 upvotes 1 year ago

Dutasteride is less commonly prescribed for hair loss because it is not FDA-approved for this purpose, unlike finasteride, which is more accessible and preferred due to fewer side effects. Dutasteride may be more effective in reducing DHT but has a longer half-life and potentially more significant side effects.

community Discontinuing oral finasteride after 7 years and switching topical

in Progress Pictures 771 upvotes 1 year ago

A user stopped oral finasteride after 7 years due to decreased libido and switched to topical finasteride and minoxidil. Others shared similar experiences and discussed alternatives like dutasteride and topical treatments.

community 3 years worth of bloodwork on Finasteride

in Finasteride/Dutasteride 49 upvotes 1 year ago

The user experienced a significant drop in libido and erectile issues after increasing their finasteride dosage, combining oral and topical treatments. They plan to take a break and resume using a lower concentration of topical finasteride to manage side effects.

community Finasteride is Good for Heart Health!

in Research/Science 119 upvotes 2 years ago

Finasteride, a hair loss and prostate drug, may also benefit heart health. Some users discuss the potential negative effects of DHT on the heart and the balance between hair loss treatments and heart health.

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SMP Specialist
Craig Bottomley-High
Studham, England, United Kingdom
13+ yrs

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Craig Bottomley-High