Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
10 citations,
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.
54 citations,
September 2000 in “Archives of dermatology” A hair-straightening product caused widespread hair loss and scalp injuries, mainly affecting African American women.
8 citations,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
8 citations,
May 2017 in “Current traditional medicine” Stinging nettle has compounds that help with joint pain, arthritis, and prostate issues.
November 2022 in “Arab Gulf Journal of Scientific Research” Taurine is important for many body functions and its deficiency can cause health problems.
19 citations,
September 1995 in “Food and nutrition bulletin” Leucaena leucocephala is nutritious but needs careful processing to remove toxins.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
233 citations,
February 2018 in “Polymers” Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.
140 citations,
August 2011 in “Biomaterials” Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.
2 citations,
January 2022 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.
16 citations,
January 2018 in “Advances in experimental medicine and biology” Hair and wool have diverse keratins and keratin-associated proteins.
1 citations,
January 2023 in “Metabolites” Changes in gut bacteria can contribute to the development of Polycystic Ovary Syndrome (PCOS), affecting metabolism, immunity, and causing inflammation. Treatments may involve adjusting these factors.
March 2024 in “Organic letters” A new method efficiently modifies alkenes to create useful medicinal compounds.
21 citations,
March 2018 in “American Journal Of Pathology” Mutations in NIPAL4 cause skin issues by disrupting lipid layers, but some improvement is seen with topical treatment.
March 2024 in “Research Square (Research Square)” Sex steroids affect the MafB gene differently in male and female hamsters.
20 citations,
December 2011 in “Journal of inherited metabolic disease” Valproic acid treatment increases a specific acid in urine by blocking an enzyme, possibly causing skin rash and hair loss.
17 citations,
December 2002 in “Biochemical and biophysical research communications” Scientists found out how a specific protein in human hair cuticles behaves and is structured.
40 citations,
July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
1 citations,
December 2022 in “Journal of applied biological chemistry” TRP-hair essence protects hair from heat damage, maintains color, and strengthens hair.
305 citations,
July 2016 in “International Journal of Biological Macromolecules” Polysaccharides have many health benefits and are used in drugs, but isolating and purifying them is complex and requires careful methods.
191 citations,
November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
70 citations,
January 2014 in “International review of cell and molecular biology” Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.
48 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
39 citations,
April 2019 in “Journal of Biomaterials Science, Polymer Edition” RADA16 is a promising material for tissue repair and regenerative medicine but needs improvement in strength and cost.
20 citations,
July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
12 citations,
February 1998 in “Gene” The B2 genes are crucial for hair growth in rats.
June 2024 in “International Journal For Multidisciplinary Research” Herbal powder shampoo is effective, safe, and beneficial for various hair needs.
April 2024 in “Research Square (Research Square)” 16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.
September 2022 in “International journal of pharmaceutical quality assurance” The herbal shampoo is less damaging and improves hair's appearance.