32 citations
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May 1999 in “Biochemical and Biophysical Research Communications” A new enzyme, BSSP, is found in high amounts in the hair follicles of nude mice.
18 citations
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February 2015 in “Acta Crystallographica Section D: Structural Biology” The study concludes that certain domains in Clostridium histolyticum enzymes are structurally unique, bind calcium to become more stable, and play distinct roles in breaking down collagen, with potential applications in medicine and drug delivery.
January 2020 in “Journal of St. Marianna University” Human placenta extract may promote hair growth by affecting certain lipid compounds.
February 2026 in “International Journal of Recent Surgical and Medical Sciences” Human exosomes are effective for targeted treatments but face scalability issues, while plant exosomes are cost-effective for cosmetics.
23 citations
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January 1981 Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.
3 citations
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October 2021 in “PLoS ONE” Piperonylic acid speeds up wound healing by reducing inflammation and boosting collagen.
August 2018 in “Journal of The American Academy of Dermatology” The moisturizing cream used after a chemical peel was well tolerated and effectively moisturized the skin.
July 2024 in “Journal of Investigative Dermatology” PH-762 shows promise in treating skin cancer by effectively targeting and silencing PD-1 in tumors with minimal side effects.
August 2022 in “Clinical and Experimental Dermatology” Amino acid supplements may not be necessary for all women with chronic hair loss.
9 citations
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December 2024 in “Nano Research” A protein-based hydrogel helps heal diabetic wounds and repair nerves.
May 2023 in “Clinical, Cosmetic and Investigational Dermatology” The research found proteins in human skin cells that help with wound healing and hair growth, which could lead to new treatments.
July 2016 in “Journal of Investigative Dermatology” R-spondin2 may help treat hair loss, gene differences could explain baldness, a peptide's regulation is linked to psoriasis, B-defensin gene copies may affect a skin condition's risk and severity, and potential markers and targets for alopecia areata were identified.
24 citations
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April 2013 in “PLOS ONE” TNFα, IFNγ, and Substance P significantly affect prolactin levels in human skin, suggesting new treatments for skin and hair conditions.
4 citations
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January 1976 in “Archives of Dermatological Research” Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.
RXR and RAR proteins in skin may help with cell growth, hair growth, and gland function.
April 2025 in “Journal of Cosmetic and Laser Therapy” QR678 Neo® improves hair transplant success and hair regrowth.
July 2024 in “Medical alphabet” Premature graying and hair changes can be treated with certain peptides and possibly targeting the endocannabinoid system.
Plant-derived exosomes show promise for healing skin wounds but need more research and trials.
1 citations
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December 2012 in “Papers on Anthropology” Certain proteins and cytokines are key in causing psoriatic skin issues.
4 citations
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December 2018 in “Macedonian Journal of Chemistry and Chemical Engineering” A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
October 2021 in “Journal of Investigative Dermatology” DPP4, a molecule in skin, helps heal large wounds and regrow hair follicles when its levels are reduced.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
46 citations
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November 1963 in “Journal of Histochemistry & Cytochemistry” Arginine converts to citrulline in hair follicles as proteins harden.
23 citations
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July 2012 in “Calcified Tissue International” A single injection of PTH–CBD can increase bone density for up to a year.
238 citations
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May 1989 in “Journal of Investigative Dermatology”
14 citations
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January 2006 in “Skin pharmacology and physiology” Procyanidin compounds from apples and barley promote hair growth and prevent hair cell death.
54 citations
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January 1984 in “Molecular and Cellular Biochemistry” 21 citations
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June 2003 in “Journal of Morphology” Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
227 citations
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February 1989 in “The Journal of Comparative Neurology” CGRP-IR axons may help maintain and renew tissues.
March 2026 in “Preprints.org” DRDE-07 shows promise for treating skin diseases due to its favorable properties.