September 2018 in “University of the Arts London Research Online (University of the Arts London)” L-arginine, hydrolysed keratin, and cystine-silanol copolymer can help protect hair from damage during and after bleaching.
June 2023 in “British Journal of Dermatology” The protein called small nuclear ribonucleoprotein polypeptide E is identified as a cause of a type of hair loss without other symptoms.
30 citations
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February 2008 in “Journal of Investigative Dermatology” 13 citations
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March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
June 2023 in “Medical records-international medical journal” Decreased IGF-1R expression may contribute to sacrococcygeal pilonidal sinus development.
15 citations
,
January 1981 in “Neonatology” Amino acid levels in milk increase with protein and align with key growth stages in Macropus eugenii.
177 citations
,
April 2008 in “Biomedical Materials” Human hair proteins can be used to create scaffolds that support cell growth for tissue engineering.
Defective protein folding due to a mutation is key in ANE syndrome.
56 citations
,
October 2007 in “Journal of Biological Chemistry” Cathepsin L is essential for heart health and its absence causes heart problems and hair loss.
10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
91 citations
,
December 2000 in “The journal of cell biology/The Journal of cell biology” Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
August 2015 in “Free Radical Biology and Medicine” The document concludes that the discussed biological mechanisms and potential therapies are not related to hair loss or hair growth.
October 2014 in “University of the Arts London Research Online (University of the Arts London)” Protein-derived ingredients can help strengthen bleached hair.
February 2024 in “Research Square (Research Square)” The research suggests that SFRP2 and PTGDS proteins might be indicators of female pattern hair loss and could contribute to hair loss.
52 citations
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February 2005 in “Biopolymers” Chemical hair straightening changes hair proteins and mostly fixes broken bonds.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” The reconstructed skin model from hair follicles functions like human skin in processing chemicals and can be used to test ingredient safety.
5 citations
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January 2003 in “Oilseeds and fats, crops and lipids/OCL. Oilseeds & fats crops and lipids” Vegetable protein lowers cholesterol and protein deficiency can cause health issues.
28 citations
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December 2015 in “Journal of biological chemistry/The Journal of biological chemistry” Prostasin has two roles in skin: one for normal skin development without needing activation, and another for proper hair growth that requires activation.
6 citations
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December 2022 in “Journal of Materials Chemistry B” The dressing generates hydrogen sulfide to help heal wounds faster by reducing inflammation and promoting cell growth.
1 citations
,
September 2023 in “Genes” DNA methylation likely doesn't cause different lambskin patterns in Hu sheep.
October 2025 in “Proceedings of the National Academy of Sciences” Phospholipids help plant proteins move by regulating receptor interactions.
29 citations
,
July 1991 in “Biochimica et Biophysica Acta (BBA) - General Subjects” Glycoproteins are present in the cell membranes of various keratin fibers.
1 citations
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February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
25 citations
,
May 2016 in “Progress in Biophysics & Molecular Biology” R-spondins and their receptors help increase bone growth and may be used to treat bone loss diseases.
May 2024 in “British journal of dermatology/British journal of dermatology, Supplement” CYLD deficiency in skin tumors disrupts hair follicle cell processes and protein secretion.
January 1999 in “American Journal of Medical Genetics Part A” The report expanded knowledge of MBTPS1-related disorders by identifying new symptoms.
4 citations
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November 1968 in “Textile research journal” Hair fibers may have a unique, non-protein sheath not previously identified.