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This study found that thermal hair-straightening devices significantly damaged the cuticle and cortex of virgin Asian and Caucasian hair, with Asian hair experiencing more protein loss than Caucasian hair.

The study reported that reducing finasteride particle size significantly improved its cellular permeation through prostate epithelial cells, though it had a lesser impact on systemic pharmacokinetics and tissue distribution in rats.

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 found that repeated use of a protein hair conditioner, followed by hot air and gamma irradiation, may lower serum collagen I and increase heat shock protein concentrations in rats, suggesting potential cumulative risks.

This study found that using natural polyphenol cross-linkers like tannic acid and green tea extract during perm treatments improved perming efficiency, wave maintenance, and hair protection compared to a control group.

This review discusses various nanoparticles used to enhance skin permeation and target delivery to skin organelles, but reports no new experimental results.

This article reviews the potential relationship between different forms of permanent hair loss such as cicatricial pattern hair loss and discusses related conditions, reporting no new clinical findings.

This review discusses the psychological importance of hair and explores how various hair cosmetics can affect hair health, emphasizing that certain products can lead to acute hair problems when repeatedly altering the natural style.

This study found that adding rose hip extract to permanent wave solutions increased wave effectiveness and reduced hair damage, although variations in hair type may affect the results.

This review explores how hair dyes and perms can damage hair structure and notes that while some adverse outcomes like skin irritation and allergic reactions have been reported, evidence from human studies remains inconsistent regarding potential risks, including cancer.

This source discusses using stratum corneum ablation as a promising method to enhance transdermal drug delivery by temporarily removing the skin's outermost barrier to improve medication absorption.

Title change to "Central Centrifugal Cicatricial Alopecia (CCCA)"; common in African American women; hair-grooming methods may contribute; no effective therapy found; trials needed.

This review discusses the historical, legal, and clinical aspects of electrolysis and thermolysis, highlighting potential risks due to the lack of standardized training for electrologists in the United States, but reports no new clinical results.

This study found that formulation factors like pH, viscosity, and chemical enhancers can significantly influence intrafollicular hydrocortisone permeation in vitro, with higher pH and enhancers reducing follicular contribution.

Act quickly to prevent permanent hair loss from tight hairstyles.

This study found that applying a keratin solution improved tensile strength, reduced absorbance, and increased gloss in damaged hair compared to untreated hair.

This study found that adding dithiodiglycolic acid to the hair straightening process decreased chemical damage and preserved the structural integrity of the hair matrix compared to using thioglycolic acid alone.

This paper highlights that traction alopecia is common among certain ethnic groups and occupations due to tight hairstyling practices, but early-stage hair loss can often be reversed with treatment and by avoiding these styling habits, as observed in Hispanic and Black women.

This article discusses methods to enhance finasteride delivery to scalp skin using heat and chemical penetration enhancers and reports no new experimental findings.

This study developed a caffeine-loaded solid lipid nanoparticle gel, observing significant reduction in subcutaneous fat tissue thickness in histological tests compared to an untreated group, suggesting it could effectively treat cellulite as a promising nanocosmeceutical gel.

This study found that platelet-rich plasma might support brain health by enhancing glial cell function and modulating immune responses in inflammation, indicating potential as a treatment for brain disorders.

This study found that adapalene-loaded solid lipid microparticles may enhance targeted drug delivery into sebum due to their similarity to sebum components, although both this formulation and a standard cream showed equivalent follicular penetration.

This obituary honors Susan Lee Lindquist for her pioneering work in cellular protein folding and genetics, highlighting her significant contributions to science and mentorship in her nearly 40-year career.

This study reported that HSP27 protein shows varied expression in human scalp hair follicles across anagen, catagen, and telogen stages, suggesting a role in hair follicle biology.

This study observed that male patients with alopecia areata had elevated serum levels of HSP70 and IL-15, with levels increasing alongside disease severity, suggesting these markers are strongly associated with the disease's pathogenesis.

This review suggests that the mTOR signaling pathway may play a significant role in hair follicle health by influencing the effects of Vitamin D receptor deficiency, potentially contributing to hair follicle damage and related hair loss conditions.

In this study, researchers found that TCDD exposure accelerated differentiation and altered gene expression in human epidermal cells, indicating the epidermal barrier as a target of TCDD-activated AHR.

This review study focused on various in vitro methods to evaluate skin permeation and retention of sunscreens, highlighting the importance of assessing sunscreen penetration due to widespread nanomaterial usage and advancements in cosmetic formulation.

This study found that heterozygous mice overexpressing Claudin-6 experienced alterations in epidermal and hair follicle differentiation, leading to distinctive coat characteristics and a disrupted epidermal permeability barrier.

In this study, lecithin/n-propanol/isopropyl myristate/water/tetracaine hydrochloride microemulsion was found to be a safe carrier for transdermal drug delivery in animal models, with analgesic effects on Wistar rats.