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This study found that bleached hair showed optimal protein structural integrity and tensile strength at pH 5, with significant changes in cross-linking, water content, and diameter at more alkaline or acidic levels.

This study found that UV radiation exposure during a simulated Brazilian summer caused more significant mechanical damage to natural hair than bleaching, although both caused comparable structural alterations, with double bleaching leading to the most severe protein degradation.

Coconut oil can penetrate hair better than mineral oil, potentially protecting against damage.

In this study, researchers developed a new 6-point scale for evaluating heat damage to hair from straighteners, finding a strong correlation between technical damage measurements and human perception of hair damage.

This paper discusses therapies for damaged scalps from hair and fiber implants and reports no new clinical findings, calling attention to treatment complexities.

This article reviews the potential of inhalation therapy to restore pulmonary elastin fibers in COPD patients and highlights the need for studies to test its feasibility; it reports no new research findings.

Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.

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.

In this study, researchers found that a high-cost hair restoration product containing coconut oil and glycerol effectively restored the structural integrity of chemically processed hair, particularly in samples that were significantly damaged by bleaching and color treatments.

In this study, combined treatment with transglutaminase and keratin significantly repaired damaged hair by improving its structural properties, reducing swelling, and enhancing crosslink activities, as evidenced by microscopy and spectroscopy analyses.

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

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

In this study, hair damaged by permanent dye showed signs of recovery over time, with near complete restoration to its original state after eight weeks.

This study found that bleaching, dyeing, and UVA/Vis radiation caused significant cuticle damage and protein loss in both Caucasian and Afro-ethnic hair, highlighting the aggressive nature of these treatments.

This study explores torsional measurements of single hair fibers to differentiate the effects of cosmetic treatments on hair structure, highlighting their potential to reveal shear stiffness changes related to cuticle damage.

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

This study found that sunlight exposure causes significant structural and chemical damage to hair, including cuticle loss, cortex damage, and discoloration, with water playing a major role in discoloration of brown hair.

This study found that single-dose x-ray irradiation in rat calvaria skin led to morphological changes in collagen fibers, disorganization, and a temporary absence of sebaceous glands and hair follicles.

This study found that torsional measurements can effectively distinguish the effects of hair care products on the cuticle versus the cortex of hair fibers, unlike tensile measurements.

This review examines mechanical and chemical causes of hair fiber adhesion failure and fracture patterns in the cell membrane complex, but presents no new experimental results.

This study determined in-vivo skin damage thresholds for 1319-nm laser exposure in pigs, and the findings may enhance understanding of thermal damage mechanisms and inform laser safety standards.

This study found that permanent wave treatment accelerates hair degradation after protease exposure, showing significant morphological differences compared to untreated hair and linked to damage from Alpha-helical region denaturation.

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 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.

This study analyzed how professional hairstyling practices cause thermal damage to human hair, focusing on heat exposure and product use, and proposed a protocol for minimizing damage with heat protection strategies and optimal temperature recommendations.

The study analyzed how professional hairstyling practices, such as excessive heat and product use, cause thermal damage to hair, and it proposed a protocol that includes heat protection strategies and optimal temperature ranges to minimize this damage for hairstylists.

In this study, UVB irradiation increased mast cell degranulation only when skin was innervated, suggesting that the interaction between mast cells and nerve fibres may exacerbate solar elastosis by promoting dysfunctional dermal elastic fiber accumulation, but further research is needed for confirmation.

Atomic Force Microscopy is a more accurate way to assess hair damage and the effect of cosmetic treatments.

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