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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.

In their review, the authors discussed the increasing issue of allergies to hair products, highlighting common allergens such as hair dyes and topical minoxidil, and outlined diagnostic methods and alternatives for those affected, particularly addressing higher risks among hairdressers due to professional exposure.

In this study, hair bleaching with ammonium persulfate and hydrogen peroxide caused significant damage to hair structure and severe skin reactions in rats, highlighting the need for cautious bleaching procedures.

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.

This study observed that bleaching brown human hair with persulfate salts and hydrogen peroxide induced significant conformational changes in keratin, particularly affecting disulfide bridges and oxidized sulfur species, which may inform the development of hair restorative treatments.

This study found that exposure to hair bleach aerosols containing persulphates and hydrogen peroxide induced airway hyperresponsiveness to acetylcholine in rabbits.

This study reports that 2-(1-Adamantyl)-4H-thiochromen-4-on-6-O-sulfamate is the most potent steroid sulfatase inhibitor identified so far, exhibiting 170-fold higher activity than the lead compound estrone sulfamate.

This review discusses the structural and functional advances in understanding sulfotransferases and sulfatases, highlighting new insights into enzyme mechanisms and inactivation by clinically relevant aryl sulfamates, but provides no new experimental results.

This study identified a fungal sulfotransferase enzyme, FgSULT1, from *Fusarium graminearum*, expanding the sulfotransferase superfamily and offering new biocatalytic methods for producing bioactive sulfates.

This study identified N-acyl arylsulfonamides, particularly N-(Boc-piperidine-4-carbonyl)-benzenesulfonamides, as steroid sulfatase inhibitors with improved cellular potency compared to previous compounds.

This article reviews the role of sulfhydryl compounds, particularly cystine, in sulfur metabolism and the physiology of skin in both normal and pathological conditions, reporting no new findings.

This study analyzed patch test results to identify allergens causing scalp contact dermatitis, finding nickel, cobalt, and balsam of Peru among the most common in the patient population.

This study suggests that the cell membrane complex in hair cuticles contains hydrophilic regions with disulfide bonds allowing polymer uptake and hydrophobic lamella-like lipid layers.

This study found that keratin phenotypes were consistent across different types of hair from the same individual, allowing for successful keratin typing following ABH blood group determination.

This study assessed three materials—L-arginine, hydrolysed keratin, and cystine-silanol copolymer—ex vivo for their potential to reduce undesirable effects of hair bleaching, such as damage to hair proteins.

Experts discussed hair care, genetic hair defects, hair loss treatments, nail surgery, lupus treatments, skin infections, and cosmetic allergies.

This review discusses the complexities and uncertainties in the pathways and mechanisms for disulfide bond formation in multicellular organisms and reports no new experimental findings.

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 compound 2g inhibits steroid sulfatase effectively without exhibiting estrogenic activity, making it a promising candidate for breast cancer treatment.

This article reviews innovations in hair cosmetics, focusing on esthetic procedures and products in the Indian market, and reports no new experimental findings.

This review discusses the role of hair dyes in cosmetic dermatology, their effects on hair and scalp health, and the importance of dermatologists understanding potential side effects; it reports no new findings.

This review discusses the components and effects of various hair cosmetic procedures and explores new techniques like camouflage methods and tattoo scalp, without reporting new clinical results.

This chapter provides an overview of the complex chemical and physical structure of the hair surface, detailing how factors like ethnicity, environmental stress, and cosmetic treatments can alter its properties and influence the adhesion of hair care products.

This review discusses the dermatological and systemic adverse effects of hair dye use, particularly focusing on the common allergen para-phenylenediamine, and reports no new clinical data.

This review covers hair anatomy, common hair diseases, diagnostic approaches, management, and hair care, but reports no new clinical findings; the authors highlight the importance of proper hair care knowledge.

This chapter describes the functions and purposes of hair care cosmetics, including shampoos, hair growth promoters, and grooming products, without reporting new experimental findings.

This study developed a metal-free method for synthesizing sulfinimidate esters, showcasing their potential as versatile intermediates for enantioselective bond formation under mild conditions.

This study found that an Enterobacter isolate demonstrated high resistance to selenate and effective sorption capacity, suggesting potential for bioremediation of selenium-contaminated environments.

The document concludes that research on sulfatase inhibitors should continue due to their potential in treating various diseases, despite some clinical trial failures.