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December 2011 in “Journal of Dermatological Science” The C-terminal tail of AHF/trichohyalin is essential for organizing keratin filaments in keratinocytes.
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January 1997 in “Birkhäuser Basel eBooks” 
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September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
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April 2012 in “Bioinformation” Two specific SNPs in the TRPS1 gene cause excessive hair growth by altering the protein's structure.
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December 2014 Low biotin intake during pregnancy can affect biotin transport in mothers and fetuses.
November 2022 in “Skin Appendage Disorders” PT-20 did not significantly improve gray hair repigmentation.
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April 2019 in “Nutrients” Biotin is important for keeping zinc levels balanced in the skin and its lack can cause hair loss.
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February 2021 in “Gels” HYDRO DELUXE BIO hyaluronic acid hydrogel is compatible with skin cells, may reduce inflammation, promote blood vessel growth, and protect against oxidative stress, suggesting it could help revitalize hair follicles.
24 citations
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October 2019 in “Genes” A new sheep gene, KRTAP36-1, may help breed sheep with better wool by reducing prickle factor.
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January 2016 in “Annals of Dermatology” A complex of 5-aminolevulinic acid and glycyl-histidyl-lysine peptide may help increase hair count in male pattern hair loss without side effects.
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August 2020 in “JCRPE” A girl with Denys-Drash syndrome was misdiagnosed due to biotin affecting her hormone test results.
Collagen peptides may boost skin and hair-related gene expression.
September 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” SELP::KP improves hair strength, elasticity, and health, making it a promising hair cosmetic.
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February 2020 in “Materials Express” Short-peptide gel scaffolds improve burn wound healing and hair growth.
September 2025 in “Indian Journal of Psychiatry” Valproic acid treatment may cause hair loss due to reduced biotinidase activity.
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October 2007 in “Journal of Investigative Dermatology” Betacellulin helps blood vessel growth in wounds but delays hair growth.
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December 2011 in “Journal of Cell Science” Different keratin types have unique amino acid patterns that are evolutionarily conserved.
October 2022 in “International Journal of Molecular Sciences” Fish collagen peptides can significantly promote hair growth.
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March 2009 in “AAPS PharmSciTech” November 2025 in “Journal of Investigative Dermatology” AMP-303 injections can increase hair growth in androgenetic alopecia with minimal side effects.
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September 2007 in “Annals of the New York Academy of Sciences” Thymosin beta 4 helps hair grow by boosting stem cell activity.
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June 2015 in “PLoS ONE” Thymosin beta-4 promotes hair growth in mice.
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August 2005 in “The Plant Cell” The TIP1 gene is crucial for normal plant cell growth in Arabidopsis.
January 2011 in “Anhui nongye kexue” The vector successfully directed specific gene expression in hair follicles.
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October 2021 in “Animal nutrition” Vitamin B6 helps increase hair growth and density in rabbits by affecting certain cell signaling pathways.
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January 1997 in “Dermatology” Two siblings were diagnosed with Trichothiodystrophy, identified by brittle hair and low sulfur content.
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January 2017 in “Journal of Cosmetics, Dermatological Sciences and Applications” TrichoTech™ may help hair growth and skin repair by increasing fibroblast growth and activity.
June 2025 in “Molecular Therapy — Nucleic Acids” A new treatment using a DNA aptamer can promote hair growth by targeting a specific receptor.
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October 2009 in “The FASEB journal” TRH stimulates human hair growth and extends the hair growth phase.
September 2017 in “Journal of Investigative Dermatology” Activating the hexosamine pathway can improve skin health and increase hair follicle stem cells.