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This study observed that long-term UV-A exposure and semi-permanent dye treatment can cause significant structural damage to human hair, particularly affecting the cuticle and cortex layers.

In this study, exposure to m-Aminophenol in human keratinocytes altered the expression of thousands of genes involved in inflammation and stress responses, suggesting potential biomarkers for MAP-induced skin toxicity.

This study found that putative hair follicle stem cells can successfully be cultured from the bulge area of hair follicles for up to four days, suggesting potential for further development of culture techniques.

This study confirmed the presence of cells in the hair follicle bulge area and outgrowth of putative stem cells, suggesting potential for further development in stem cell culture techniques.

Henna orange powder, especially with alkali, protects and colors hair better than oxidizing colorants.

Certain hairstyles can cause scalp diseases, smoking is linked to hair loss, 5% minoxidil foam is effective for hair loss treatment, and various factors influence wound healing and hair growth.

This observational study reports a striking correlation between the use of henna hair dye and a specific pattern of hair loss, termed "hennapecia," but calls for experimental research to determine causality.

A new method helps understand hair shine and various products improve hair care.

Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.

Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.

This study found that permanent dye application causes initial swelling and subsequent degradation of the hair cuticle, with recovery taking more than 8 weeks to approach pre-treatment conditions.

This book reviews the biology and clinical assessment of both normal and abnormal hair growth, providing a detailed examination of various hair and scalp diseases but reports no new research findings.

This study evaluated herbal hair care products, including oils, shampoos, and dyes, formulated with ingredients like coconut oil and neem, and found they potentially offer safe and environmentally friendly alternatives to synthetic products with nourishing and antimicrobial properties.

This study reported that the Fe@C/CB electrocatalyst effectively detected Metol in water samples with a low detection limit, high sensitivity, and good stability, suggesting it as a promising tool for environmental monitoring.

This source reviews historical works on cosmetics and healthcare from the Middle Ages to the Early Modern Period in Europe, highlighting the use of natural ingredients for aesthetic and medicinal purposes across various cultures, including Christian, Hebrew, and Muslim societies.

This case report describes a unique instance of keratoacanthomas developing within a red ink tattoo on a 51-year-old male, eight years after tattoo placement, and highlights the importance of monitoring for these lesions in tattoos, particularly red ink.

This article discusses various approaches to potentially prevent hair loss, including stress management, increasing fresh air exposure, avoiding hair dyes, and considering laser hair restoration, suggesting that identifying and addressing the cause of hair loss may help mitigate it.

This study found that human hair follicle dermal papilla cells and keratinocytes self-assembled differently in 3D spheroid co-cultures, providing insights into cell distribution and organogenesis during skin regeneration.

This article provides issue information and does not include an abstract or any new research findings.

This study found that hair loss increased after chemical hair dyeing, while sea cucumber extract shampoo and toner may help reduce hair loss and improve scalp condition.

This review examines scalp contact dermatitis, attributing most positive patch test reactions to hair dyes, hair cleansing products, and medicaments, but presents no new research findings.

This paper reviews various aspects of hair care products, including formulations, regulations, categories, and safety, without reporting new clinical findings.

This review highlights that hair care products can cause adverse effects like irritation dermatitis and allergic contact eczema but does not report new clinical findings.

In this study, researchers developed a pH-sensitive dendritic polyglycerol nanogel to measure pH inside hair follicles using an ex vivo porcine ear model, finding that the pH increases from 6.5 at the skin surface to 7.4 in deeper follicle areas, without observed toxicity.

This article reviews the classification and treatments of vascular anomalies, such as hemangiomas and vascular malformations, and reports no new clinical results; it emphasizes the importance of managing patient expectations due to treatment limitations.

This study found that the alcoholic extract of Eclipta alba exhibited dose-dependent antianaphylactic effects in animal models, possibly due to membrane stabilization and reduced histamine release.

In this study, frequent use of hair straighteners/relaxers and pressing products was associated with an increased risk of ovarian cancer, with potential variation in risk by tumor type noted for permanent hair dyes.

This study demonstrated that human hair keratins have strong antioxidative properties, providing protection against oxidative stress in human dermal fibroblasts, suggesting their potential as antioxidizing supplements.

This case report suggests that a cutaneous microbial biofilm could be an underlying cause of red scrotum syndrome, based on the observed onset and treatment response in one patient.

This study found that the new HCC additive enhances the permeation of pigments and active ingredients into hair, suggesting potential use in developing functional cosmetic hair products.