November 2024 in “International Journal of Cosmetic Science” Haircare products with a pH between 5 and 7 are best for maintaining healthy hair.
April 2024 in “Current journal of applied science and technology” The organic hair ointment is safe, promotes hair growth in male rabbits, and has good stability and pH for human use.
February 2024 in “Trends in Sciences” Store Tectona grandis leaf extracts in slightly acidic, light-protected conditions for best stability.
January 2023 in “Fashion and textiles” Cationic and nonionic surfactants provide better color intensity and resistance for semi-permanent hair dye than anionic surfactants.
February 2022 in “Cosmetic Dermatology” Permanent hair waving uses chemicals to create long-lasting curls.
October 2015 in “Cosmetic Dermatology” Hair is complex, varies in type, and plays a big role in attractiveness and culture.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
May 2019 in “Asian Journal of Chemistry” Finasteride forms three new products under acidic stress.
51 citations
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January 2014 in “International journal of trichology” Shampoo pH can affect hair health, with alkaline shampoos potentially causing damage and acidic shampoos reducing frizz.
36 citations
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November 2019 in “Molecular biology and evolution” Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
September 2011 in “Clinical Biochemistry” Glycoconjugates help heal hair follicles during skin repair.
September 2011 in “Clinical Biochemistry” Sodium metasilicate improved spinal motoneuron recovery after sciatic nerve injury in rats.
September 2011 in “Clinical Biochemistry” Certain sugars increase in some layers of the hair follicle during the middle of the healing process in rats, which may help improve healing.
May 2004 in “International Journal of Cosmetic Science” Melanogenesis inhibitors like kojic acid and niacinamide can reduce inflammation and pigment production in skin cells.
57 citations
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November 2011 in “The Journal of Dermatology” Hair follicle stem cells can help repair nerve injuries.
35 citations
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April 2009 in “Journal of Neuroscience Research” HDAC inhibitors help brain cells grow and improve brain function.
22 citations
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October 1996 in “Dermatologic clinics” Understanding intermediate filaments helps explain hair health and related diseases.
17 citations
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April 2006 in “Brain Research” 5α-reduced neurosteroids may help regulate glial cell differentiation.
5 citations
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January 2017 in “Molecular Medicine Reports” Human hair follicle cells can be turned into neural stem cell-like cells, which might help treat brain diseases.
December 2023 in “Frontiers in pharmacology” Progesterone initially worsens but later reduces neuropathic pain in mice, through different mechanisms.
4 citations
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January 1994 in “Yakugaku zasshi” EPC-K is stable except at very acidic pH or when exposed to sunlight, and it can decompose in low ethanol concentrations.
10 citations
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March 2005 in “International Journal of Cosmetic Science” Oxidation changes human hair by breaking down fats and forming new acidic groups, affecting how it interacts with conditioners and cosmetics.
January 2021 in “Lecture notes in mechanical engineering” High temperatures, acidic conditions, and too much coconut oil damage hair, while a pH of 5 to 7 keeps it healthy.
10 citations
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September 2020 in “Biopolymers” Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
January 2025 in “Regenerative Biomaterials” The hydrogel helps reduce scarring and improve wound healing by releasing salvianolic acid B in acidic conditions.
95 citations
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September 2012 in “Oman Medical Journal” Mutations in keratin genes can cause skin and mucosa disorders.
62 citations
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October 2013 in “Journal of Human Evolution/Journal of human evolution” Forensic DNA Phenotyping can help predict physical traits from crime scene DNA to identify suspects.
57 citations
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November 2024 in “Aggregate” Smart hydrogels can improve diabetic wound healing by adapting to wound conditions and providing controlled treatment.
55 citations
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October 2020 in “Frontiers in Pharmacology” Targeting endolysosomes may help treat COVID-19.