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Using 5-butylpicolinate esters improves the sensitivity and reliability of detecting testosterone and dihydrotestosterone in saliva.

Researchers developed a quick and sensitive method to identify and measure hair growth-promoting substances in a herbal mix.

Finasteride's stability and safety confirmed through precise analytical methods.

Matrix effects in LC-MS can be managed but not completely avoided.

Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.

Researchers developed a quick and sensitive way to measure finasteride in blood using a small sample size.

A new method accurately measures nine specific hormones in human blood.

Vimentin and transthyretin proteins are linked to black coat color in sheep.

New method measures finasteride in plasma, finds two formulations bioequivalent.

Researchers found over 40 compounds in Bituminaria bituminosa, including many flavonoids and some with potential for medical and hair care uses.

A new method was created to measure metformin in hair, showing potential for monitoring treatment and medical investigations.

The method can measure vitamin B3 levels in human hair accurately.

A new, quick method was developed to analyze skin lipids, discovering a new ceramide subclass.

Researchers developed a method to identify and analyze cyclosporin compounds and their structures effectively.

The study found that Ziziphus jujuba seeds contain beneficial compounds for treating insomnia and anxiety and that the methods used are effective for assessing their quality.

Researchers developed a reliable way to measure hormones in urine, showing that a baldness treatment doesn't change hormone levels.

The study developed a method to analyze ancient hair proteins using very small samples.

The method accurately measures the amount of ketoconazole in anti-dandruff shampoo and cream, and can also be used to monitor the drug in human plasma.

Forensic hair analysis for drugs is now more reliable and accurate.

Eclipta alba has anti-aging and anti-inflammatory properties, making it a potential ingredient for cosmetics.

A method was found to accurately measure spironolactone and canrenone in blood samples using liquid chromatography-mass spectrometry.

Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.

Valproic acid treatment increases a specific acid in urine by blocking an enzyme, possibly causing skin rash and hair loss.

Finasteride almost fully depletes allopregnanolone in rat brains and enhances 20α-DHP, but doesn't change 3α-DHP levels.

St. John's wort increases finasteride metabolism, reducing its effectiveness; use caution when combining them.

Method measures finasteride in plasma, suitable for pharmacokinetic studies.

The research identified 12 antioxidant compounds in Polygonum multiflorum roots, suggesting these as quality markers for the plant's processed roots.

Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Iron deficiency may contribute to hair loss.