February 2021 in “Aesthetic Cosmetology and Medicine” Glycosaminoglycans, found in things like hyaluronic acid, help maintain skin health and stimulate hair growth, and are safe to use topically.
4 citations
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November 2022 in “Journal of biomedical materials research. Part B, Applied biomaterials” Human hair proteins, especially keratins, can protect cells from oxidative stress in lab settings.
9 citations
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January 1975 in “The Histochemical Journal” Dog hair follicles contain important molecules that may affect hair growth.
5 citations
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October 2007 in “PubMed” Amino acids in conditioners improve hair strength, hydration, and color retention.
46 citations
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June 2013 in “Journal of structural biology” High glycine–tyrosine keratin-associated proteins help make hair strong and maintain its shape.
June 2025 in “Mağallaẗ ʻulūm al-rāfidayn” New pyrazole derivatives may help treat hair loss, but more testing is needed.
1 citations
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May 2025 in “Journal of the Indian Chemical Society”
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
May 2025 in “Journal of Dermatological Treatment” The shampoo improved seborrheic dermatitis symptoms, but worked better for males than females.
Cornification is the process where living skin cells die to create a protective barrier, and problems with it can cause skin diseases.
April 2018 in “Journal of Investigative Dermatology” Sensitive scalp has higher pH, more redness, abnormal sebum, and altered bacterial makeup.
5 citations
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February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
June 2023 in “Benha Journal of Applied Sciences” People with chronic hair shedding have lower antioxidant levels in their blood compared to healthy individuals.
November 2025 in “Journal of Investigative Dermatology” September 1992 in “Journal of Dermatological Science” 44 citations
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July 1993 in “Journal of Investigative Dermatology” 29 citations
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August 2011 in “PubMed” Hair and nail proteins, mainly keratins, are crucial for structure and can indicate health issues.
39 citations
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January 1979 in “Journal of the Society of Cosmetic Scientists of Korea” Surfactants can protect or harm hair, skin, and nails, depending on their type and use.
6 citations
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February 2020 in “Journal of Natural Products” A new compound from a sponge strongly inhibits an enzyme linked to male-pattern hair loss without being toxic at low levels.
25 citations
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May 2008 in “Journal of cosmetic dermatology” Conditioning agents, especially jojoba oil and lauryl PEG/PPG-18/18 methicone, protect and strengthen chemically straightened Afro-ethnic hair.
40 citations
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July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
September 2025 in “Journal of Surfactants and Detergents” Shampoos with sodium lauroyl methylaminopropionate improve hair lubrication and reduce irritation.
3 citations
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May 2024 in “Amino Acids” Disrupted cysteine metabolism may cause hair breakage in Alopecia Areata, suggesting potential treatments like N-acetylcysteine.
April 2024 in “JMR. Journal of molecular recognition/Journal of molecular recognition” Hydrophilic carbon dots cause one protein to clump more and prevent another from clumping.
1 citations
,
February 1989 in “PubMed” Electrophoresis can effectively analyze hair proteins for forensic use, even after cosmetic treatments and up to 2 years of weathering.
13 citations
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January 2017 in “Chemical & Pharmaceutical Bulletin” Certain compounds, especially those with a propionic substituent, could potentially be new treatments for hair loss and similar disorders.
9 citations
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January 2011 in “Journal of X-ray science and technology” Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
Monocyclic aromatic compounds are important for developing various drugs and treatments.
7 citations
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December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
68 citations
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September 1990 in “Biochemical Pharmacology” Minoxidil activates hair growth by being sulfated by P-PST in the human liver.