This review discusses the potential risks of formaldehyde in hair keratin treatments like Brazilian blow-dry, and reports no new clinical results; it emphasizes the need for greater safety assessments including occupational exposure.
February 2025 in “International Journal of Cosmetic Science” This study found that treating hair with ATS, formed from fumaric acid and cysteamine, effectively improved hair quality by increasing moisture content and altering the internal structure of strong curls.
40 citations
,
June 2013 in “Journal of cosmetic dermatology” This review discusses the widespread use of Brazilian keratin treatments and notes that many contain formaldehyde, marketed as safe despite potential safety concerns, but reports no new clinical results.
2 citations
,
January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” This review discusses the effects of chemical hair straighteners and reports associated side effects like scalp inflammation and hair damage, noting the variability of findings and the need for further research.
April 2017 in “Journal of Pharmaceutical Investigation” In this study, the administration of indole-based compounds, particularly L-Tryptophan and Tryptophol, to a PCOS-induced rat model resulted in an increased number of healthy ovarian follicles and a reduction in ovarian cysts compared to untreated rats, suggesting potential therapeutic efficacy.
9 citations
,
April 2019 in “International Journal of Molecular Sciences” This research indicates that KCED-1 and KCED-2 effectively induce adiponectin production in human subcutaneous fat, which may promote hair growth on the scalp.
January 2025 in “Journal of Pharmacognosy and Phytochemistry” In this study, the researchers investigated the plant Vitex negundo and its active ingredients, noting that both natural and synthetic derivatives exhibit concentrated biological activity, which may explain the plant's traditional use in treating various ailments such as depression, malaria, and skin diseases.
23 citations
,
June 2014 in “International Journal of Cosmetic Science” This study reported that the treatment of hair with glyoxylic acid straighteners causes major conformational changes within the hair fiber due to interactions between carbonyl and keratin components.
1 citations
,
October 2021 in “Indian Journal of Plastic Surgery/Indian journal of plastic surgery” This study highlights that improving medical professionals' knowledge of hair cosmetics can enhance patient adherence to alopecia treatments and reduce health risks from incorrect use of hair products.
4 citations
,
January 2021 in “Skin appendage disorders” This review discusses hair straightening techniques, products, and safety risks, providing guidance for dermatologists to advise patients effectively; it reports no new clinical results.
43 citations
,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” This article reviews innovations in hair cosmetics, focusing on esthetic procedures and products in the Indian market, and reports no new experimental findings.
15 citations
,
November 2020 in “Pharmaceutics” In this ex vivo and mouse model study, Tofacitinib-loaded nanoparticles demonstrated enhanced delivery of the drug into hair follicles and reduced inflammatory effects compared to conventional forms, indicating potential for safer, topical use in treating alopecia areata.
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.
January 1993 in “Side effects of drugs annual” This chapter covers various dermatological drugs, cosmetics, and topical agents, focusing on the properties and uses of propolis, but does not present new clinical findings.
March 2024 in “Organic letters” This study reports that difluoromethyl nitrile oxide can rapidly functionalize various alkenes at room temperature, leading to products that can transform into valuable medicinal chemistry building blocks like CF2H-isoxazolines for bioactive molecule modification.
August 2023 in “Fermentation” This review discusses the potential of metabolic engineering to enable sustainable industrial-scale production of L-aspartate and its derivatives, detailing current microbial production progress, limiting factors, and future prospects with emerging technologies in synthetic biology.
2 citations
,
May 2022 in “International Journal of Trichology” This study identified 43 patients with psoriasiform skin reactions associated with Brazilian Keratin Treatment, suggesting this adverse effect may be underdiagnosed and important to recognize through clinical and dermatoscopic features.
73 citations
,
October 2013 in “International Journal of Cosmetic Science” This review examines the chemical composition and potential health risks of hair straighteners, but it reports no new findings and emphasizes the importance of understanding hair fibre structure for safe use.
3 citations
,
June 1983 in “Archives of Dermatology” This article discusses the effectiveness of adrenal cortex compounds E and F in treating connective tissue disorders like rheumatoid arthritis and lupus erythematosus, but it reports no new clinical results.
11 citations
,
October 2016 in “Pediatric dermatology” This case study observed that three girls with alopecia experienced complete hair regrowth after avoiding balsam of Peru and related fragrances, suggesting contact allergy played a role in their hair loss.
September 2024 in “Journal of Cosmetic Dermatology” In this study, researchers found that Ectoin, derived from halophilic bacteria, can mitigate stress-related skin damage by reducing cortisone's inhibitory effects on essential skin proteins and decreasing UVB-induced glucocorticoid activity, highlighting its potential as a preventative agent for stress-induced skin issues.
13 citations
,
June 2018 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” This study found that the expression of laminin-511 and -332 was significantly increased in psoriasis skin lesions and may influence keratinocyte proliferation and apoptosis, suggesting a previously overlooked role in the disease's pathogenesis.
This chapter reviews various types of aromatic compounds and provides references, but reports no new experimental results.
7 citations
,
November 2004 in “International Journal of Cosmetic Science” 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.
3 citations
,
June 2019 in “Journal of cosmetic dermatology” In this study, tresses treated with pH 1.0 acid straightener showed better straightening but more damage to hair properties compared to those treated with pH 2.0.
39 citations
,
March 2008 in “Journal of biological chemistry/The Journal of biological chemistry” This study found that GLI2 plays a key role in activating follistatin, an activin/BMP antagonist, in response to hedgehog signaling in human epidermal cells, with implications for hair follicle development and basal cell carcinoma.
8 citations
,
November 2020 in “Nature Communications” This study demonstrates that Tp63-expressing epithelial stem cells from non-skin tissues can respond to skin morphogenetic signals and contribute to the formation of hair follicles, sebaceous glands, and epidermis.
6 citations
,
March 2022 in “PLoS ONE” This study suggests that CGE may enhance hair growth by activating β-catenin signaling pathways in human hair dermal papilla cells and promoting the anagen growth phase in mice.
5 citations
,
July 2006 in “Contact dermatitis” This case report indicates that contact dermatitis on the face can result from using a bleaching ointment containing ammonium bisulfite during hair-dyeing.
1 citations
,
November 2023 in “International Journal For Multidisciplinary Research” In this review, the researchers explored the formulation and evaluation of a pure herbal shampoo using plant extracts, aiming to compare its physicochemical properties with synthetic and other herbal shampoos, and concluded that consumer expectation shifts towards safety and efficacy could enhance herbal shampoo popularity.