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The document concludes that treating skin conditions should include psychological care and a multidisciplinary approach is essential for effective management.

This study found significant improvements in hair growth parameters and a reduction in hair fall after using the test product for 90 days, with no adverse events reported.

This review examines complex regional pain syndrome (CRPS I) mechanisms, including immune dysregulation and psychological factors, but reports no new clinical results; the authors highlight potential diagnostic refinements.

In 2002, various skin reactions were reported due to different drugs, including allergies, hair loss, skin lesions, and other skin conditions.

This review discusses the development and types of hair and nails as skin appendages and reports no new research findings.

This study found that implanting polyamide hair fibers may serve as a supplementary treatment for scalp scars, with most cases showing favorable outcomes and manageable complications.

In this study, a method using riboflavin phosphate, citric acid, and polyols successfully optimized protein cross-linking in hair of all colors through visible light-mediated photo-cross-linking, improving the mechanical properties and hair-setting effects without the influence of hair color.

This study developed a novel hair-straightening shampoo incorporating a polyphenol–inorganic sulfate redox agent, finding that it effectively straightens hair while enhancing strength and reducing damage due to its protective polyphenol coating.

In this study, the researchers observed that ferulic acid and resveratrol effectively protected chemically treated hair from oxidative damage, particularly against protein loss and color degradation, but not cisteine oxydation prevention, and these antioxidants also offered protection against sun-induced damage when used in conditioners.

This study found that a new eco-friendly hair crosslinking method using visible light and non-toxic chemicals caused less damage and improved mechanical properties compared to traditional thioglycolic acid treatment.

In this study, the authors concluded that a hydrolyzed eggwhite protein treatment promoted the reconnection of disulfide bonds in excessively bleached hair, after reduction and oxidation processes in permanent waving.

This study compared shampoos and found that shampoo D, containing polyquaternium-10, guar gum, and dimethicone, was most effective in restoring chemically permed hair.

In this study, researchers reported that the application of refolded human K31 keratin protein significantly improved diameter, mechanical strength, and smoothness of chemically damaged hair after a single treatment.

This study found that modern styling cosmetics can significantly alter hair structure through changes in interfacial chemistry and cohesion, particularly when applied to already damaged hair.

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.

This study found that the newly developed hair product K-30 increased both protein content and weight in chemically damaged hair to levels similar to healthy hair, unlike traditional products that only temporarily improve texture.

Several companies launched new hair care ingredients in 2011 to improve conditioning, color retention, combability, and heat protection.

This study developed and tested a shampoo with semi-permanent dyes designed to gradually cover gray hair, reporting maintained stability and effective gray–black coloration on high-canities hair tresses through eight wash cycles.

This study found that reintroducing certain depleted amino acids into weathered hair using cosmetic treatments can strengthen the hair, improving its look and feel and reducing damage and breakage.

This study describes a microfluorometric method to quantify lipid removal and reattachment on human hair during light exposure and chemical treatments, altering hair surface properties from hydrophobic to hydrophilic.

In this study, researchers investigated how different hair dye processes affect hair structure, finding that oxidative dyes disrupt hair more than semi-permanent dyes, and emerging technologies could help maintain hair health while achieving desired color.

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 both everyday physical and environmental stresses, as well as chemical treatments, contributed to hair damage, with cuticle layers being more noticeably affected.

In a laboratory study, researchers found that a novel Bioactive Crosslink Repair Complex improved both the protection and repair of chemically damaged hair, enhancing tensile strength, shine, and cuticle alignment when added to bleaching mixtures and leave-in conditioners.

This review discusses the potential benefits of the Restolin Hair Supplement for hair growth and reports no clinical results, with the authors noting that the claims are not supported by FDA approval or clinical trials.

This study observed that combining hair dyeing with sodium hydroxide relaxers drastically increased protein loss in Caucasian virgin dark brown hair, while ammonium thioglycolate or guanidine hydroxide relaxers caused less damage.

This study concluded that adding polymeric conditioning actives to shampoos improved color retention in permanently dyed hair, while additional cationic dyes at certain pH levels weakly dyed the hair directly.

In this study, chemical treatments during permanent hair straightening were found to randomize proteins in the cortex, aiding in the reconnection of disulfide bonds during oxidation.