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This study suggests that human keratin fiber matrix has a well-defined nano-scale grainy structure rather than being amorphous, with grain size influenced by chemical treatments, temperature, humidity, and follicle-level factors.

This study found that minoxidil absorption through the skin increased with longer contact times, reaching over 75% of the maximum absorption within four hours.

This study found that surface-modified liquid crystalline nanoparticles significantly enhanced skin permeation of finasteride and dutasteride compared to unmodified nanoparticles, suggesting potential for improved treatment efficacy in androgenetic alopecia.

This review discusses recent trends in non-surgical cosmetic dermatology procedures in the United States and reports no new clinical results, emphasizing the need for evidence-based evaluations of safety and efficacy.

The study found that the Marangoni effect causes the uneven wetting of surfactant-coated hair due to the surfactant moving into the water.

Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.

In this study, the researchers reported that while both propylene glycol and sodium lauryl sulfate enhanced finasteride's skin deposition, ethanol was the only effective enhancer of finasteride's permeation through the skin.

This study found that Follicular Maps, derived from trichoscopic images, remained consistent over time and unaffected by hair cycling or noncicatricial alopecia, offering a precise tool for diagnosing and monitoring hair and scalp conditions.

This study found that the extent of reducing agents' effects on hair fibers was linked to the electrode potential of the reagents used.

Targeting drugs to hair follicles can treat skin conditions, but reaching deep follicle areas is hard and needs more research.

This review discusses the integration of nanoparticles with microneedles to improve drug delivery through enhanced stability, bioavailability, and controlled release, noting ongoing challenges with stability, scalability, and safety.

In this in silico study, researchers found that the hair follicle's contribution to dermal permeability of small molecules varies with the lipophilic and hydrophilic properties of substances, highlighting the need for careful characterization of substances filling the follicular route when interpreting experimental permeability data.

This study suggests that extracellular vesicles from prostate cancer cells could aid in identifying tumor heterogeneity and serve as biomarkers, while also playing a role in SARS-CoV-2 infection in nasopharyngeal mucus.

This study found that microplastics on the Lebanese Mediterranean coast transport various organic and inorganic pollutants, posing threats to marine organisms and potentially human health.

This study concluded that a new model of reconstructed human epidermis using keratinocytes from plucked hair follicles offers a less-invasive alternative to conventional skin-derived models for skin research.

This review provides an update on sex hormone-associated dermatoses in dogs, detailing known conditions like feminization syndrome and exploring less understood issues such as alopecia X, without presenting new clinical findings.

Certain ingredients can help protect hair color.

This comprehensive review reports on the therapeutic potential and bioactive components of licorice (Glycyrrhiza glabra Linn), highlighting its diverse pharmacological properties and health benefits but also noting associated toxicity and adverse effects in medicinal and food applications.

The LRRK2-G2019S mutation in Parkinson's disease has a lifetime penetrance of 25-35%, and finasteride may help reduce symptoms in adult male Tourette syndrome patients.

This article contains additional supporting information available online but presents no new research findings.

Finasteride may help reduce symptoms in male Tourette syndrome patients.

This study found that nanoemulsion formulations with oleic acid or eucalyptol significantly enhanced the delivery and retention of caffeine through hair follicles and surrounding skin regions.

The document describes a woman with familial Parkinson's disease due to a genetic mutation, showing severe symptoms and poor response to treatment, and suggests finasteride may help reduce symptoms in Tourette syndrome.

Liposomes can make the antiandrogen RU 58841 more effective for skin application by reducing absorption, increasing skin retention, and targeting sebaceous structures.

Finasteride significantly reduced tics and obsessive-compulsive symptoms in patients with Tourette syndrome.

THAP1 gene changes do not affect DYT1 dystonia; finasteride may help reduce tics and OCD in Tourette syndrome.

A specific gene mutation is linked to a hereditary form of dystonia that responds well to certain medications.

Finasteride significantly reduced tics and obsessive-compulsive symptoms in Tourette syndrome patients.

Finasteride may help reduce tic severity in male Tourette syndrome patients.

A woman's unique dementia was misdiagnosed, a genetic mutation increases Parkinson's risk with age, and finasteride may help with Tourette syndrome.