17 citations
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August 2007 in “Bioorganic & Medicinal Chemistry Letters” A compound made by Pfizer can potentially stimulate hair growth and reduce oil production, making it a good candidate for topical use.
12 citations
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June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
April 2018 in “Journal of Investigative Dermatology” Researchers found a substance in chicken egg yolk that helps hair grow.
124 citations
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December 1988 in “Differentiation” Trichocytic differentiation starts in cells with epithelial cytokeratins, transitioning to trichocytic cytokeratins in hair and gradually in nails.
51 citations
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January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
January 2025 in “SSRN Electronic Journal” 4 citations
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January 1994 in “Current Opinion in Endocrinology & Diabetes” PTHrP regulates various normal body functions, including bone development, skin, and muscle function.
7 citations
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May 1995 in “The journal of investigative dermatology/Journal of investigative dermatology” Trichohyalin, a protein from pig tongue, was purified and found to have a filamentous structure.
47 citations
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October 2021 in “Journal of Nanobiotechnology” HPDAlR nanoparticles greatly improve skin wound healing without toxicity.
2 citations
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January 1993 Trichohyalin is a versatile protein involved in hair and skin structure.
3 citations
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January 2005 in “Biological & Pharmaceutical Bulletin” The peptide GPIGS helps hair cells grow and speeds up hair regrowth in mice.
3 citations
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July 2023 in “Acta Biomaterialia” PepACS offers a safer, eco-friendly way to perm, dye, and repair hair.
March 1998 in “Journal of Dermatological Science” Keratin-associated proteins may have roles in various mouse tissues, not just hair.
July 2024 in “Experimental Dermatology” AP collagen peptides help hair grow and improve hair health.
January 2026 in “International Journal of Molecular Sciences” Topical peptides may offer safer, effective pain relief and healing for wounds.
May 2025 in “Wound Repair and Regeneration” TSN6 peptide improves skin thickness and hair growth.
2 citations
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September 1980 in “Experientia” Polyethylene alanine caused hair loss in young lab animals but not in adults, with hair regrowth occurring within 20 days.
85 citations
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January 1990 January 2026 in “Clinical Cosmetic and Investigational Dermatology” Polynucleotides show promise for improving skin conditions safely but need more research.
November 2022 in “Journal of Investigative Dermatology” Fish-derived collagen may help hair grow longer and affect hair stem cells, while bovine collagen could benefit hair stem cell maintenance, potentially aiding in hair loss conditions.
2 citations
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August 2025 in “Pharmaceutics” PN hydrates skin; PDRN heals and regenerates skin and hair.
Collagen peptides may help maintain hair growth and could be beneficial for hair loss conditions.
May 2012 in “F1000Research” Proteins released by cells can promote hair growth in people.
47 citations
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January 2017 in “RSC Advances” Keratin peptides can change hair shape gently without harsh chemicals.
April 1996 in “Journal of Dermatological Science” 24 citations
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November 1997 in “Journal of Biological Chemistry” Mouse high-glycine/tyrosine proteins have distinct patterns in hair follicles, peaking at specific hair cycle days.
1 citations
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April 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Polyamines are important in deciding hair follicle stem cell behavior, affecting hair growth and loss.
211 citations
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February 1994 in “Proceedings of the National Academy of Sciences” Too much parathyroid hormone-related protein in skin disrupts hair growth in mice.
Neuropeptides affect hair growth and could be used to control it.