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This study found that 9% of tested patients had positive patch test reactions linked to hair care products, with most reactions clinically relevant and commonly involving allergens like p-phenylenediamine.

This study identifies important differences in allergens found in hair products marketed for ethnic hair compared to nonethnic hair, with fragrances being the most common allergen in ethnic products.

This study identified the most common allergens in hair products linked to scalp allergic contact dermatitis, with hair dyes, shampoos, and conditioners primarily associated with the condition.

Results are not reported in this source. The abstract does not provide a summary or findings from the Australasian Journal of Dermatology regarding contact dermatitis.

This study found that "clean" shampoos are less likely to contain allergenic preservatives compared to traditional shampoos, but both types use fragrance equally, which can be irritating or allergenic.

This review examines hair cosmetics, including shampoos and conditioners, for their formulations and effects, but reports no new clinical findings; it emphasizes the importance of dermatologist knowledge in treating diverse hair conditions.

This review examines existing research and clinical trials on the use of dupilumab for various skin, respiratory, and gastrointestinal disorders, but it reports no new clinical findings.

This article provides dermatology residents with essential information on cosmetic use to help manage skin conditions and reactions, without reporting new clinical results.

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 found that a commercially available shampoo significantly increased hair counts and reduced hair shedding in Korean subjects with alopecia over 16 weeks.

This study found that chemical hair straightening significantly reduced hair curl and improved smoothness and shine, but did not significantly affect transverse fissures or split ends, indicating potential benefits with some side effects.

This article reviews the composition and functionality of shampoos, emphasizing the role of surfactants in cleaning and conditioning hair, and reports no new experimental results.

In this double-blind, randomized controlled study, researchers found that Wen by Chaz Dean Sweet Almond Mint Cleansing Conditioner was similarly tolerated compared to three other hair cleansing conditioners and was significantly better tolerated than salicylic acid shampoo or baby shampoo in terms of skin reactions.

This report highlights hyperpigmentation as an underreported side effect of topical cidofovir treatment for trichodysplasia spinulosa.

This study concluded that shampoos sold in pharmacies generally contain fewer regulated allergens under EU law compared to those sold in mass-market stores or by mail order, and pharmacy-sold baby shampoos were allergen-free.

This review discusses the evolution of modern shampoos from basic cleansing agents to products with specific therapeutic uses and emphasizes the importance of dermatologists understanding shampoo mechanisms and appropriate selection for scalp and hair health.

This synopsis reviews key dermatological advancements discussed at the British Association of Dermatologists meeting in 2011 and reports no new clinical results.

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 analyzed the composition and cost of 50 cosmetic body scrubs for keratosis pilaris, finding that chemical exfoliants with glycolic acid may reduce symptoms by enhancing skin shedding and reducing water loss, but further clinical studies are needed to confirm their effectiveness.

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.

This review discusses the potential link between contact allergy and frontal fibrosing alopecia, noting the presence of implicated allergens in current literature, but reports no new clinical findings.

This index of Harper's Textbook of Pediatric Dermatology, Fourth Edition, provides no clinical results or new findings.

This study evaluated the effects of a shampoo containing ginsenoside Rg3 on hair loss prevention and regrowth, with no conclusive clinical results reported.

This review discusses various skin conditions affecting women throughout their lives and highlights the pharmacist's role in advising on management and treatment, but it reports no new clinical results.

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 study developed an organic hair conditioner using chitosan-thiadiazole conjugates that showed improved hair detangling, moisture retention, and protection without causing irritation, promising an environmentally sustainable approach to hair care.

This study found that econazole nitrate delivered via MPEG-dihexPLA micelles significantly increased skin deposition compared to Pevaryl® cream, potentially enhancing drug bioavailability and clinical efficacy.

This study demonstrated that combining l-cystine and thiamin in a formulation may protect against UV-induced damage in growth-limited human epidermal keratinocytes in vitro.

This study found that a single application of 0.1% aqueous benzalkonium chloride solution effectively treated dermatomycosis caused by Trichophyton species in guinea pigs.