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This study found that cadmium adsorption on human hair varies significantly between individuals, likely due to differences in hair acidity, and nearly complete removal can be achieved with strong acid solutions.

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 review discusses the forms of selenium and sulfur in soil, their plant absorption, and risks of toxicity to livestock, emphasizing selenium's role in selenosis and sulfur's link to polioencephalomalacia in ruminants; it reports no new experimental results.

This study explored the potential of human hair keratin as a filtration material, finding that it may effectively absorb the pollutants diclofenac and perfluorobutanesulfonate. The researchers reported significant binding affinities through molecular simulations, supporting further investigation into keratin's use for water purification.

This study investigated the ability of a human hair keratin dimer to absorb the pollutants diclofenac and perfluorobutane sulfonate, finding high binding affinities that suggest potential for hair-derived materials in water filtration technologies.

This study demonstrated that alkali-modified Kapok fiber significantly enhances the adsorption of collagen, suggesting its potential application in collagen-based dressings.

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.

This study reported that larger caffeine nanocrystals, at 694 nm, increased caffeine bioavailability via transfollicular penetration compared to smaller nanocrystals, especially in long-term serum concentration measurements.

This ex vivo study reported that a 645-nm wavelength red-light laser can penetrate and reach cells in the various layers of swine oral mucosa and periosteum tissue samples.

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.

Some chemicals absorbed through the skin can cause serious health problems.

This study found that apple polyphenol extract, particularly oligomeric procyanidins, inhibited pancreatic lipase activity and reduced triglyceride absorption in both mice and humans.

This study demonstrated that hair follicles significantly expedite the absorption of caffeine through the skin compared to interfollicular pathways.

This review summarizes current knowledge on tight junctions in mammalian skin and their role in drug delivery and interaction with other barrier components, but reports no new experimental results.

This study found that human skin with hair follicles and sebaceous glands absorbed significantly more steroids than scar skin without these appendages, indicating their role in steroid penetration.

This article reviews the applications of microneedle technology in drug delivery, dermatology, and cosmetics, but it presents no new experimental or clinical findings.

Minoxidil absorbs poorly through skin, with low risk of side effects at 1-2% concentration.

This study observed that hairless rat skin was more permeable to mannitol and progesterone than hairy rat skin, indicating that follicular structures significantly impact percutaneous absorption.

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 Transcutol P significantly enhanced the skin penetration of Finasteride in vitro, while cationic and anionic surfactants did not show such effects.

This case report documents an instance of symptomatic hypothyroidism developing in a patient with papillary thyroid carcinoma after beginning treatment with orlistat.

This study found that α-tocopheryl acetate is well absorbed through healthy skin, with absorption occurring through specific pathways and showing high affinity for small blood vessels.

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

This study found that UVA and UVB exposure increased hydroquinone and sunscreen absorption in nude mouse skin, with less absorption enhancement observed in more lipophilic sunscreens.

This review discusses the potential link between long-term transdermal exposure to sex hormones from antiperspirants and increased breast and prostate cancer rates, calling for further research to confirm this theory.

This study found that incorporating 0.5% TPGS into topical minoxidil solutions enhanced hair growth in mice, although increasing TPGS to 2% decreased effectiveness.

This study observed that proretinal nanoparticles delivered significantly higher concentrations of retinal to the stratum corneum and hair follicles compared to non-particulate forms, potentially improving topical retinoid therapy.

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.

This study found that high concentrations of dimethyl sulfoxide are needed to cause significant swelling in hair fibers, though the swelling is reversible, unlike the effects on skin.

This study found that paracellular transport significantly contributes to the intestinal permeability of minoxidil, suggesting its limited suitability as a Biopharmaceutics Classification System reference drug due to potential variability.