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This study found that dimethylpabamidopropyl laurdimonium tosylate, a quaternary ammonium surfactant, adsorbs onto human scalp hair with kinetic and isotherm behaviors fitting specific models, changing hair fiber wettability from hydrophobic to hydrophilic.

This study observed that low levels of calcium and magnesium in blood serum were associated with health issues like hair loss and anxiety among participants from urban and rural Pakistan.

This study found that the optimized finasteride-loaded lyophilized tablets using a self-nanoemulsifying drug delivery system improved bioavailability in human volunteers compared to the marketed finasteride product.

This study developed analytical methods to better understand hair treatment with cosmetic formulations, revealing that active agents primarily adsorb on the hair surface during short washes.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

This study found that the moisture sorption and desorption process can differentiate between cosmetic treatments of hair and provide insights into hair fibre structure changes, with bleaching causing greater symmetry breaking than perming.

This review discusses the development and application of multiphoton microscopy in dermatology, highlighting its advantages and potential future research directions without reporting new clinical results.

This article explores the potential of chitin nanofibrils as a bioactive polymer for skin applications by examining their hydrophilic properties and effects on cell behavior, but presents no new experimental results.

In this study, pre-treatment with steam towel, l-menthol, and CA-carpronium enhanced the absorption of minoxidil nanoparticles in mice, potentially increasing therapeutic efficiency without side effects.

This study developed and validated a sensitive method using adsorptive cathodic stripping voltammetry to directly determine minoxidil in topical solutions, shampoos, and creams, achieving high recovery rates and precision.

This study found that Finasteride may spontaneously diffuse into an SDS-based model cell membrane at a significant rate, with distinct behavior in polar and non-polar solutions.

This study found that bioengineered skin substitutes developed for 21 or 28 days effectively mimic native skin's ability to absorb UV radiation, suggesting suitability for treating severe skin defects.

This abstract describes a study that found fluoxetine HCl can be absorbed through cat skin when applied as a transdermal gel, though its bioavailability was about 10% compared to oral dosing.

This study found that using spanlastics, a nano, surfactant-based drug delivery system, improved the bioavailability, drug release characteristics, and pharmacokinetic behavior of famotidine, a poorly soluble drug, by enhancing its dissolution and membrane permeation.

This study found that diffusion coefficients of chemicals in artificial sebum are significantly higher than those in stratum corneum lipids, suggesting the hair follicle may significantly contribute to transdermal permeation.

This review suggests that exosomes have potential in dermatology, but their clinical use remains in early development due to challenges in standardization, understanding, and safety.

This review discusses the potential of lecithin organogels for improving topical drug delivery and presents no new experimental results; the authors highlight their stability and low skin irritancy as advantages.

This study presents a method for directly measuring the solubility of solid chemicals in the skin's stratum corneum under various humidity conditions, emphasizing its importance for dermal drug delivery and chemical safety assessments.

This study found that hair absorbs significant amounts of NaBr from solution, with absorption increasing linearly with solution concentration and additional effects noted with acidic or basic solutions.

In this study, researchers found that in hairy guinea pig skin, minoxidil delivered via 40-nm nanoparticles had higher skin penetration than 130-nm nanoparticles, indicating nanoparticle size affects permeation.

In this study, original natural organic cosmetics with a natural index of ≥ 90% and efficacy patents increased purchase intention and reduced promotional dependency in the US market.

This study used molecular dynamics simulations to model the outer surface of human hair, illustrating complex behavior and potential adsorption interactions with fatty acids, which may inform cosmetic formulation development.

This study observed that hyaluronan's transformation into HA·3Ca and its hydrate increases drug absorption by changing its molecular characteristics, influenced by zwitterionic character and acidic pH.

This review highlights that while nanoparticle-loaded dissolving microneedles have considerable promise for enhancing transdermal drug delivery, progress is delayed by insufficient understanding of their in vivo behavior, which the authors emphasize as crucial for advancing clinical applications.

This study examined sheltered and adopted domestic cats, finding that dark coat color and living environment significantly influence hair cortisol and DHEA levels as stress indicators, while age and sex do not; adoption was associated with reduced long-term stress, underscoring its benefits for feline welfare.

This study found that lipid extraction increased water diffusion in wool and hair fibers; the effect was more pronounced in hair, indicating lipids are crucial for water permeability.

This study discusses levetiracetam's role as an alternative treatment for idiopathic generalized epilepsies, highlighting its potential effectiveness, especially for patients unsuitable for valproate.

Method quickly measures finasteride concentration in capsules.

This review examines the main absorption sites and influencing factors for orally administered drugs, highlighting variables such as solubility and gastrointestinal conditions that affect drug absorption in the small intestine and the development of effective drug delivery systems.

Human hair's ability to get wet is complex and can change with treatments, damage, and environment.