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Ethanol spreads well on hair at low humidity but less so at higher humidity due to water condensation.

In this study, researchers found that subjects with clinical alopecia had significantly higher levels of squalene in their hair bulbs compared to controls, suggesting squalene as a potential metabolic and pathogenic marker for certain alopecia conditions.

Reactive lipids from aging cells change the extracellular matrix, affecting cell function and inflammation.

This study found that methanol is more effective than isopropanol at removing external cortisol from grizzly bear hair and suggests that the choice of solvent can influence hair cortisol concentration results.

This study reports the development of novel 4-amido-Δ4,6-steroids as potential inhibitors of 5α-reductase, showing promising in vitro results for conditions like acne and benign prostatic cancer.

This study found that a small number of patients with essential oil allergies could be missed if only standard fragrance tests are used, suggesting the need for specific testing and careful product inspection.

This study found that in rodent models, the ability of D1 dopamine receptor activation to impair sensory gating is facilitated by 5α-reductase type 1, which produces allopregnanolone.

Female mice are less affected by certain substances that alter alcohol consumption compared to male mice.

This study focused on the rheology of almond oil at various temperatures and shear rates, using a Brookfield RVDV II I Ultra Rheometer, to evaluate its potential as a biodegradable lubricant.

This study reported that while no synthesized compounds surpassed finasteride in 5α-reductase inhibitory activity, certain 4-azasteroid-2-oximes exhibited notable inhibition.

This article outlines the synthesis of spiro[cyclohexane‐1,2′‐[2 H ]indene] derivatives similar to known steroid 5α‐reductase inhibitors, but it does not report experimental findings.

This study suggests that the phytochemical characteristics of their extract may help reduce IL-1α levels, potentially offering therapeutic support for addressing certain types of nonscarring hair loss.

A new, less toxic and more efficient method to create the anti-baldness compound RU58841 was developed in 2014.

Progesterone increases alcohol tolerance and withdrawal anxiety, while DHEAS prevents them.

This study found that elevated serum alarin levels in men with androgenetic alopecia may be linked to the presence of metabolic syndrome, correlating with the condition's severity and duration.

This study found that the majority of "hypoallergenic" hair dyes still triggered allergic reactions in patients sensitive to para-phenylenediamine.

This study found that abietic acid from pine resin more effectively inhibits testosterone 5α-reductase than several plant extracts, suggesting potential for treating androgen-dependent diseases.

This study found that two new progesterone derivatives showed higher antiandrogenic effects and 5α-reductase inhibition than finasteride in hamsters, particularly reducing seminal vesicle weight and flank organ size.

Some people using minoxidil for hair loss developed an allergic skin reaction, often related to an ingredient that helps minoxidil work better.

High temperatures and certain chemicals can significantly change the amino acid content in human hair.

This article reviews innovative methodologies in drug discovery using computational QSAR studies and layered double hydroxides for alpha-reductase inhibitors, but reports no new experimental results.

The new compounds may be more effective and cheaper than current treatments for conditions like baldness.

This study observed that the compound EM-402 reduced 5α-reductase activity and sebaceous gland size in the flank organs and ears of hamsters, indicating potent localized anti-androgenic effects without systemic action.

This study found that petroleum ether extract of Glycyrrhiza glabra prevented alopecia in testosterone-treated male rats, demonstrating effects comparable to the standard treatment finasteride.

This review discusses the medical and dental applications of polyhydroxyalkanoates (PHAs), highlighting their potential for improving drug delivery and providing biocompatible solutions for medical devices, but reports no new clinical results.

This abstract discusses ayurvedic herbal shampoos containing ingredients like amla and aloe vera, noting that they aim to clean hair and scalp without adverse effects, contrasting with chemical shampoos that can also cause damage.

Linalool in personal care products may worsen frontal fibrosing alopecia by damaging hair follicle stem cells and triggering harmful immune responses.

This paper discusses various toxicological properties of diphenyl cresyl phosphate, highlighting its low acute toxicity, potential neurotoxicity linked to o-cresyl phosphate content, and the lack of data for inhalation exposure, but presents no new experimental findings.

This study found that lipid peroxidation products play a clear role in the pathogenesis of skin diseases like psoriasis, vitiligo, and alopecia, but their role in diseases like melanoma and atopic dermatitis remains unclear.