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Seborrhea in Parkinson's disease may be linked to hormones, not autonomic impairment.

This review discusses the broadening scope of botulinum toxin applications beyond traditional uses, highlighting its effects on non-neuronal cells and potential in treating various dermatological conditions, without reporting new clinical findings.

This study reports that among men, skin surface hydration and pH change with age, but transepidermal water loss and sebum production show less variation.

This article explains the preparation methods and applications for various vesicle and particle systems used in transdermal drug delivery, highlighting their effectiveness and potential for further development in this field.

This review discusses the embryology, structure, and function of sebaceous glands and their involvement in skin disorders but reports no novel findings.

This study found that in Japanese, German, and American females, changes in hair lipid patterns with age may reflect alterations in sebum excretion and affect hair texture.

This review discusses the potential of follicular drug delivery systems to target the pilosebaceous unit and reports no new research findings.

This study explored the use of SOD-loaded niosomes as carriers to enhance the delivery of superoxide dismutase into hair follicles on guinea pig skin, finding that niosomes improved SOD penetration and preservation compared to free SOD, suggesting their potential as effective delivery vehicles.

This review discusses the mechanisms and grading challenges of acne vulgaris, highlighting the need for better treatment strategies and reports no new experimental results.

In this study, nanoemulsion formulations were found to significantly enhance the skin retention of the antiseptic agent triclosan, with the optimal mixture being a low surfactant concentration, as demonstrated through quantitative and qualitative analysis using tape-stripping and micro CT scans.

This review discusses the complexities of diagnosing and treating iron deficiency related to nutritional anemia and hair loss, concluding that routine screening and supplementation for hair loss are not yet supported by sufficient evidence.

This study concluded that daily treatment with 1 mg finasteride did not affect spermatogenesis or semen production in young men and had small, reversible effects on prostate volume and serum PSA.

This study found that keratin films made from human hair can potentially substitute for human nail plates in drug permeability studies, but they show higher sensitivity to penetration enhancers compared to bovine hooves.

This study found that while a transscrotal testosterone patch increases serum testosterone levels in hypogonadal men with AIDS and weight loss, it does not improve weight, body cell mass, or quality of life.

Oral retinoids can cause side effects ranging from mild to severe, including birth defects, and require careful monitoring and contraception.

This review examines the benefits and potential risks of androgen replacement therapy for male hypogonadism but reports no new clinical results; the authors highlight the need for careful risk assessment, especially in older men.

This study observed that human anagen hair follicles can grow in vitro when maintained serum-free, with possible implications for understanding hair follicle growth mechanisms.

This study found that ATR-FTIR spectroscopy combined with machine learning effectively differentiated alopecia areata patients from healthy controls with an AUC of 0.85, and also showed promise in predicting treatment response, particularly through alterations in the Amide I band.

This study explored using keratin extracted from human hair waste to create biodegradable bioplastic films, revealing promising potential for applications in packaging and disposable items due to their uniform surface morphology and ability to degrade with keratinophilic fungi.

This study developed a validated gas chromatography–tandem mass spectrometry assay to assess sex steroid hormones in cerebrospinal fluid, finding substantial levels of DHEA, androstenedione, and testosterone, with strong correlations to serum levels, providing insight into sex steroid dynamics in the human CNS.

This source reviews recent data on topical minoxidil, evaluating its pharmacology, mechanism of action, clinical effectiveness, and side effects in treating hair loss, although its precise mode of action remains unclear.

This study found that lower serum ferritin levels are associated with an increased risk of non-scarring alopecia in non-menopausal women, indicating that assessing iron stores is important for managing this condition.

This study found that Prss53-mutated rabbits exhibited curved hair and skeletal dyskinesia, suggesting a link between Prss53 loss and these traits, potentially involving disrupted calcium metabolism.

A pregnant woman's skin condition improved after giving birth, possibly due to high estrogen levels during pregnancy.

This retrospective cross-section study found that in a cohort of Pica patients in Iraq, 92.4% were female, and many had low levels of ferritin, hemoglobin, and vitamin D, which may contribute to the disorder by causing psychological issues.

This review examines the roles and benefits of chitosan in cosmetics and oral hygiene, highlighting its potential in the cosmeceutical market, but it reports no new results.

This report verifies isotretinoin's significant efficacy in treating severe acne over the past year in the U.S., highlighting the need for careful patient selection and monitoring due to potential side effects.

This study investigated various proteins as eco-friendly hair perming agents for Asian hair and found that bovine serum albumin and keratin achieved perming results comparable to commercial products, while also increasing hair moisture, indicating a protective effect during heat styling.

This research presents a comprehensive workflow for producing EMA-compliant autologous keratinocyte-based therapies for wound healing and explores miRNA-mediated regulations in human keratinocytes and adipose-derived mesenchymal stem cells.

This study highlights the increasing consumer preference for herbal and organic hair care products due to their minimal side effects, and it describes various natural ingredients like fenugreek and flaxseed that may help treat hair disorders and promote healthy hair growth.