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This study found that conditioner agents reduced the damage caused by oxidative hair dye, specifically improving protein retention and combability in treated Caucasian hair.

This study found that hair dyeing is more common among Korean women than men and among individuals with significant grayness, and it was not linked to higher scalp disease prevalence.

Avoiding dyed wigs and clothing improved severe allergic reactions in a woman treated with diphencyprone.

This research found that translucent keratin films absorbed more dye than opaque films, suggesting they may serve as better screening substrates for evaluating hair dye effectiveness.

This study found that incorporating Argania spinosa kernel oil and/or Theobroma grandiflorum seed butter into hair care formulations reduced protein loss in Caucasian hair dyed with an oxidative product.

This meta-analysis reported that individuals who frequently use hair dye or have used it for over 20 years have an increased risk of developing non-Hodgkin's lymphoma.

This study found that the majority of "hypoallergenic" hair dyes still triggered allergic reactions in patients sensitive to para-phenylenediamine.

This study suggests that long-term use of hair dyes may be associated with higher testosterone levels among premenopausal Japanese women.

This article discusses the diagnostic challenges of evaluating hair and scalp conditions in patients using hair dye, emphasizing how dyes can mimic different pathologies and lead to contact dermatitis.

This study found that using poly(ethylene imine) as a counterion reagent improved the colorability and shampoo fastness of bleached human hair when dyed with an acid dye.

This study found that combining pulsed dye laser with pingyangmycin improved treatment efficacy, scar repair, skin condition, and patient satisfaction in treating post-acne hyperplastic scars, compared to laser alone, without increasing adverse reactions.

This study found that adding 7% Ecklonia cava extract to oxidative hair dyes significantly reduced their cytotoxicity and oxidative stress without affecting color performance.

This study found that adding rose hip extract to permanent wave solutions increased wave effectiveness and reduced hair damage, although variations in hair type may affect the results.

This study presents a rare case of alopecia totalis occurring after the use of permanent hair dye.

This case report details an instance of acute kidney injury following the inhalation of hair dye during a hairstyle session.

This study demonstrates that a bioinspired peptide, PepACS, can efficiently and safely perm hair by interacting with keratin's sulfhydryl group without compromising tensile strength, and it shows potential for hair repair and dyeing applications in the hair care industry.

This study suggests that a hair dye formulated with nano-sized Calendula Officinalis extract can effectively color white hair and lighten black hair, offering an alternative to synthetic dyes.

Hair dye can cause serious scalp issues, including skull erosion.

In this study, most participants began using chemical hair dyes at a young age, experiencing adverse effects, but continued due to the perceived importance of hair color.

This study found that hair dyes significantly affect DNA sequence analysis, with the organic extraction method performing better on hair shafts and the prepFiler kit yielding higher success for follicle-included samples.

This review explores how hair dyes and perms can damage hair structure and notes that while some adverse outcomes like skin irritation and allergic reactions have been reported, evidence from human studies remains inconsistent regarding potential risks, including cancer.

This review covers hair dye formulations, their mechanisms, and potential applications, but reports no new findings; the authors highlight the process of oxidative dyeing and repairing damaged hair.

This study found that a herbal hair dye formulated with a 1:2 ratio of henna and indigo successfully colored unpigmented hair dark brown to black, with favorable attributes compared to synthetic dyes.

This paper describes a new technique using gentian violet to improve visualization during follicular unit extraction in white-haired patients, suggesting it enhances the accuracy of the procedure.

This review highlights a case of cross sensitization to dyes from temporary henna tattoos and stresses the need for public awareness on the risks associated with these tattoos.

This chapter reviews the chemistry and potential benefits of plant-based hair dyes in cosmetics, but it reports no new clinical results.

In this study, adding conditioning agents PA1, PA2, and PA3 to light blonde oxidative hair dyes improved combability and protein retention of light brown hair without affecting tensile strength, though PA1 and PA2 offered enhanced thermal protection.

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 study observed a significant rise and fall in black hair dye dermatitis cases over six years, primarily affecting middle-aged men, with most cases presenting as chronic pigmented lichenoid photodermatitis.