16 citations
,
August 2003 in “Journal of The American Academy of Dermatology” Nitrogen mustard was not very effective for hair regrowth in alopecia areata and has potential skin cancer risk.
12 citations
,
February 2010 in “Tetrahedron Letters” New minoxidil compounds with better water solubility were made, but their full effects and safety need more research.
73 citations
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April 2017 in “Scientific Reports” Nitrogen starvation in microalgae increases lipid production, making it a potential biofuel source.
March 2018 in “International Pharmacy Acta” New niosomal formulation effectively delivers aminexil through rat skin.
2 citations
,
January 1981 High temperatures and certain chemicals can significantly change the amino acid content in human hair.
January 1994 in “Memorial University Research Repository (Memorial University)” Oleosomes help cell growth in Sesbania rostrata nodules but don't aid nitrogen fixation.
April 2015 in “The FASEB Journal” Nitrogen mustard causes DNA damage and structural changes in mouse skin hair follicles, but some recovery occurs after 5 days.
5 citations
,
February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
July 2005 in “HortScience” Adding wool or hair waste to soil boosts crop yields and nutrient levels.
10 citations
,
June 2001 in “Annals of neurology” Alzheimer's patients have higher levels of certain chemicals in their hair.
June 2023 in “CHEDS Journal of Chemistry Education and Science” Green spinach leaves can be an effective and liked hair tonic for hair loss.
September 2025 in “Cosmetics” NMN supplements may improve hair quality and appearance in middle-aged women.
September 2025 in “Journal of Surfactants and Detergents” Shampoos with sodium lauroyl methylaminopropionate improve hair lubrication and reduce irritation.
1 citations
,
January 1998 in “Cosmetics and toiletries” Both amodimethicone and dimethicone copolyol amine are effective hair conditioners.
2 citations
,
January 1998 in “Neurourology and Urodynamics” AMN can cause bladder problems due to nerve damage.
65 citations
,
May 2001 in “Journal of Analytical Toxicology” Basic drugs like amphetamine are absorbed more in darker hair than lighter hair.
88 citations
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July 1958 in “Nature” Citrulline was found in hair follicle proteins for the first time.
17 citations
,
January 1998 in “Neurourology and Urodynamics” Adrenomyeloneuropathy (AMN) can cause bladder problems due to nerve damage.
125 citations
,
February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
Amaranthus extract cream safely boosts hair growth in men with hair loss.
1 citations
,
June 2019 in “Current developments in nutrition” A combination of arginine silicate complex and magnesium biotinate improves hair and nail growth in rats.
3 citations
,
April 2018 in “JURNAL ILMU KEFARMASIAN INDONESIA” Ambon banana weevil extracts can be used in hair care products to promote hair growth.
2 citations
,
May 2022 in “Journal of trace elements in medicine and biology” Sodium pentaborate pentahydrate can increase hair growth and improve hair quality at certain doses.
45 citations
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January 1977 in “Advances in experimental medicine and biology” Hair follicles have an enzyme that converts arginine to citrulline in proteins.
May 2026 in “Fibers and Polymers”
1 citations
,
July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.
1 citations
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January 1996 Cysteine and arginine are essential for hair growth and thickness.
164 citations
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September 2010 in “PLANT PHYSIOLOGY” Nitric oxide helps Solanum nigrum adapt to long-term zinc toxicity by changing root growth and metal balance.
3 citations
,
February 2002 Low phosphorus increases root hair growth in plants, partly independent of ethylene.
April 2024 in “Current research in nutrition and food science” Taking an amino acid supplement improved skin, hair, and nail health in women.