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Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.

New method accurately measures finasteride and M3 in urine, helping evaluate pharmacokinetics.

A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.

Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.

The method detected sex hormones in some health supplements, with one containing banned testosterone.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Vitamin D levels in hair don't match those in blood, so hair isn't a reliable indicator of Vitamin D status.

Men with androgenetic alopecia have different scalp oils and microbes compared to those without.

The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.

PSA could be a marker for hyperandrogenism in women, but more research is needed.

The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.

A new method was developed to accurately detect and measure 47 different drug ingredients in various products.

The method can measure multiple steroids in human hair to study long-term steroid metabolism, especially in newborns and children.

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

Chinese medicine may help treat hair loss by affecting genes and enzyme activity.

New method accurately measures finasteride in tablets.

The method effectively detects banned substances in urine for sports antidoping.

Ganoderma lucidum may help treat enlarged prostate in rats.

The method accurately measures Tamsulosin and Finasteride in medication and is suitable for regular quality checks.

Mice with LSS deficiency showed hair loss and cataracts, similar to humans, and can help in understanding and treating this condition.

The gel made of minoxidil and hydroxypropyl-β-cyclodextrin improves hair growth and is good for long-term use.

Glycyrrhizic acid and licorice extract can significantly reduce unwanted hair growth.

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

Researchers developed a new method to find substances in herbs that can block a specific enzyme linked to hair loss.

High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.

New method effectively detects illegal hormones in anti-aging foods.

New gel formulas without ethanol and propylene glycol, containing a minoxidil-methyl-β-cyclodextrin complex, have been created for treating hair loss.

The new method is rapid, sensitive, and accurate for evaluating the quality of the medicinal herb Platycladi cacumen.

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

Ranitidine and finasteride lower TMAO levels, reducing heart and kidney damage by changing gut bacteria.