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This study found that monoethanolamine-based hair color formulations caused significantly more damage to hair than ammonia-based formulations, especially at high concentrations.

Skin surgery has significantly advanced since 1950, with improvements in chemical peels, hair restoration, lasers, and Mohs surgery, and the development of less invasive techniques and specialized training.

Hair care products clean, protect, style, color, and change hair structure.

This review highlights recent advances in laser treatments for skin disorders, including the optimization of vascular lesion treatment and improved safety for hair removal, but reports no new results.

This study found that an enzymatic method effectively identified chemical treatments like perming and dyeing by detecting higher degradation in treated hair compared to untreated hair.

This study found that a CLSM-based approach could semi-quantitatively assess the transdermal penetration behavior of fluorescent dyes with different lipophilicities, offering a tool for early-stage screening of compound penetration.

This study suggests that higher use of phytoestrogen-containing hair and personal care products may increase the association between permanent hair dye, straightener use, and breast cancer risk in black women.

This study explores the complex and not yet fully understood causes of premature hair greying, noting genetic factors such as Pax3 and MITE genes, potential defects in melanin transfer, and associations with certain syndromes, while stating that effective treatments are currently lacking.

This review discusses the adverse effects of dermatological drugs, topical agents, and cosmetics, reporting no new clinical findings; the authors highlight several concerns such as cancer risk from hair dyes and systemic absorption issues with minoxidil.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

This study found that multiple treatments combining NIR laser phototherapy with ICG significantly reduced inflammation and improved skin condition in acne without side effects.

This study found that the "Hair Medulla Care" treatment allows various substances to penetrate hair more effectively, suggesting potential applications for enhancing hair coloring, care, and perming processes.

This study found that testosterone concentrations in hair samples were moderately stable over three months, with cosmetic treatments like coloring increasing testosterone levels, while natural hair color in untreated hair did not affect testosterone measurements.

This study highlights that improving medical professionals' knowledge of hair cosmetics can enhance patient adherence to alopecia treatments and reduce health risks from incorrect use of hair products.

In this study, researchers found that papain-treated or mechanically altered Asian scalp hair fibers allowed for spontaneous ion movement and anthocyanin dye flow through the medulla tube, with dye flow enhanced by applied DC voltage.

The editorial introduces various topics on laser and cosmetic treatments in a medical journal.

This study found that lasers and light devices may alleviate recalcitrant skin side effects in cancer patients treated with EGFR inhibitors, offering an alternative for those who do not respond to traditional therapies.

This chapter reviews the anatomy and structure of hair, discusses hair damage and analyses, and explores methods for processing hair changes, but presents no new research findings.

This review discusses various topics from the 62nd Annual Montagna Symposium on the Biology of Skin, focusing on the diverse effects of light on skin biology, and reports no new clinical results.

This study found that hair coloring, waving, and ironing were associated with increased hair abnormalities compared to untreated hair in Iranian women.

This review discusses the factors influencing human hair color, including genetic components like the MC1R gene and enzyme activity, without presenting new experimental results.

This study demonstrated that using chelants like N , N ′ ‐ethylenediamine disuccinic acid in hair coloring products can significantly reduce keratin fiber damage by preventing the formation of metal-induced free radicals.

Twisting hair weakens it, but strength can be recovered at low twist levels.

Pulsed dye laser and hydrogel dressings effectively treat hypertrophic scars.

In this study, human hair-carboxymethylated protein analysis showed that weathering for over 2.5 years can obscure electrophoretic patterns, while cosmetic treatments did not cause significant changes.

This case study highlights that even professional eyebrow tinting can lead to chemical burns, and increasing consumer awareness is crucial as its popularity grows and unregulated products become more common.

This study found that bleaching significantly damages hair structure and increases combing difficulty, while dyeing with emulsifiers can partially reduce damage and improve combability, yet both processes cause notable protein loss.

In this study, a herbal hair dye was formulated and tested, showing good stability and quality. The addition of Barleria prionitis flower enhanced color intensity and conditioning effects, suggesting it as a safe and effective natural alternative to chemical dyes.

This study conducted among medical students in Saudi Arabia found a 37.2% prevalence of premature hair graying and associated it with smoking, a keto diet, hair coloring, and family history, while suggesting that lifestyle changes may reduce its impact.

This study explains the formulation and evaluation of a natural polyherbal shampoo, which effectively colors hair and provides conditioning without the dermal and systemic toxicity risks of synthetic dyes, offering an effective alternative to conventional products.