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This article explores the potential applications of polyglutamic acid in cosmetics, discussing its benefits for skincare and haircare, but reports no new experimental results.

This study found that non-toxic polycarboxylic acids can achieve satisfactory hair perming effects with limited strength loss, suggesting they have potential as a safer alternative to harmful perming chemicals.

In this study, phenylthiocarbamide intake was associated with hair graying in rats, while switching to tap water led some rats to regain their original fur color, suggesting dietary factors influence pigmentation.

This study indicates that individuals exposed to PPD mount varying immune responses, with either tolerance, subclinical inflammation, or allergy, suggesting no true non-responders to PPD.

This study found that "clean" shampoos are less likely to contain allergenic preservatives compared to traditional shampoos, but both types use fragrance equally, which can be irritating or allergenic.

This narrative review discusses adverse reactions associated with hair care products, specifically irritation dermatitis and allergic contact eczema, and suggests the need for attention to common allergens like PPD, GMTG, and ammonium persulphate.

This study established a new mouse model for TCE-induced skin sensitization and reported that proinflammatory cytokines TNF-α, IFN-γ, and IL-2 significantly contribute to this sensitization process.

This study developed an organic hair conditioner using chitosan-thiadiazole conjugates that showed improved hair detangling, moisture retention, and protection without causing irritation, promising an environmentally sustainable approach to hair care.

This study suggests that PF-0998425 is an effective androgen receptor antagonist for sebum control and androgenetic alopecia with rapid metabolism reducing the risk of systemic side effects.

In this study, oxidation hair dye formulations tested on mice showed no evidence of causing systemic toxicity or cancer over an 18-month period.

This report details a case study where a 40-year-old woman experienced allergic contact dermatitis and angioedema-like symptoms after using PPD-containing hair dye. Patch testing confirmed a positive reaction to PPD, highlighting the substance's potential to cause both T-cell and IgE-mediated hypersensitivity reactions.

This study investigated the modes of action of selected pesticides, suggesting that prochloraz and tebuconazole are linked to reproductive disorders via steroidogenesis disruption, while mancozeb involves inflammatory processes.

In this study, the aqueous extract from Phthirusa pyrifolia leaves significantly decreased testosterone levels in male Wistar rats without causing liver or kidney damage, suggesting potential effects on libido and reproduction.

This study evaluated a new composite material made from PLA, ALG, ZnS, and HT for blood-contacting applications, finding it improved surface characteristics and displayed anticoagulant properties and high biocompatibility with no genotoxic effects on blood and skin cells.

This report describes eleven cases of thallium poisoning in individuals who consumed tortillas made from barley mixed with thallium sulphate, leading to symptoms including tingling, abdominal pain, vomiting, and limb weakness.

This review discusses the roles of various PLA2 enzymes in skin health and disease, highlighting potential pathways for future diagnosis and therapy, but it reports no new clinical results.

This study found that compound 10 inhibited testosterone conversion to DHT in hamster flank organs and seminal vesicles, whereas compound 11's inhibitory effect varied with dose, linked to halogen electronegativity differences.

This case report describes a woman experiencing severe hair loss due to allergic contact dermatitis from a hair dye containing PPD.

In this review, researchers highlight recent findings on the cosmeceutical applications of phlorotannins from brown seaweeds, emphasizing their promising bioactive properties since 2020.

This study found that while dutasteride significantly altered pregnane metabolism in mares during late gestation, it did not impact pregnancy outcomes, highlighting the complexity of pregnane metabolism and the necessity of LC-MS/MS for accurate measurement.

This study found no evidence that the tested hair dye ingredients undergo hepatic metabolism to reactive oxidized metabolites in human liver microsomes and hepatocytes.

In this study, novel substituted benzoyl benzoic acids and phenylacetic acids were potent and selective inhibitors of human steroid 5alpha-reductase type 2, with one compound showing promising bioavailability in rats for potential clinical evaluation.

Created microspheres show potential for safe and effective use in prostate artery embolization.

This review highlights the challenges in identifying histological features of adverse reactions to soft tissue fillers and emphasizes the need for increased awareness due to product uncertainty and delayed reactions.

This study found that oral administration of finasteride to pregnant rats caused dosage-related developmental toxicities, including hypospadias and decreased anogenital distance in male offspring.

This research concluded that the novel hydrogel PlacMA, derived from human placenta and curable by visible light, shows promise for cell culture and tissue engineering applications due to its tunable properties.

In this study, researchers successfully synthesized a rigid 3a-arylhexahydropentalene-1,6-dione from the easily accessible starting material cyclopent-2-en-1-one, highlighting a structural motif common in natural products and pharmaceuticals.

In this study, the stability properties of various active pharmaceutical ingredients (APIs) were characterized, revealing how factors like pressure and water sensitivity influence their intrinsic stability and potential degradation.

This article discusses the need for long-term studies on pathways for children and adolescents in gender services and reports no new findings; the authors call for data on psychological care.