12 citations
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December 2009 in “Amino Acids” In this study, topical application of α-methylspermidine during the telogen phase in mice induced hair growth by increasing the polyamine pool and mimicking the anagen phase's characteristics.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” In this study, L-methionine and L-serine application was observed to have the most significant effect on hair weight and root length, followed by acetyl L-methionine and L-serine, while glutathione inhibited growth.
19 citations
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January 2007 in “Biological & pharmaceutical bulletin” This study found that glycine treatment inhibited melanogenesis in B16F0 melanoma cells and reduced melanin content in C57BL/6J mice by down-regulating tyrosinase protein levels.
November 2025 in “Journal of Investigative Dermatology” AMP-303 injections can increase hair growth in androgenetic alopecia with minimal side effects.
April 2012 in “KSBB Journal” This study suggests that specific structural features of minoxidil analogs, such as hydrophobic and hydrogen bond field contributions, are key to enhancing lysyl hydroxylase inhibitory activity, which could inform future hair growth treatments.
49 citations
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January 1972 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
February 2026 in “PubMed” This study reported that polysaccharides from Astragalus roots could promote hair regeneration and optimize drug delivery when combined in innovative microneedles, effectively improving hair growth in mice with androgenetic alopecia.
2 citations
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November 2023 in “Bioactive materials” The researchers reported that a newly developed ionic liquid-based microemulsion significantly improved the local delivery of copper peptides in mice, enhancing hair growth-related factor activation while offering a safer, non-invasive alternative to existing treatments for hair loss.
January 2026 in “Molecules” In this study, the novel thiol-Michael click perming molecule, MA2-CySS, achieved repeatable perming with reduced oxidative damage, preserving hair keratin's structure while maintaining efficiency comparable to traditional oxidative methods.
12 citations
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September 2018 in “Naturwissenschaften” This study found that melatonin at 0.2 g/L for 72 hours most effectively enhances cashmere growth in Liaoning cashmere goats by upregulating the lncRNA MTC, which activates NF-kB signaling.
March 2024 in “Cytologia” In this study, researchers observed that melatonin-mediated LncRNA MTC in Liaoning cashmere goat skin fibroblasts enhances cell proliferation by interacting with the GSTM1 protein, affecting its complex formation with ASK1 and thereby inhibiting apoptosis, which may be relevant for improving cashmere growth.
November 2022 in “Journal of Herbal Medicine” This study suggests that three mushroom-derived bioactive compounds, Zhankuic acid A, Sterenin M, and Melleolide K, may effectively inhibit SRD5A2 and stabilize its interaction, indicating potential for treating androgenic alopecia.
74 citations
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January 2020 in “Frontiers in Genetics” In this study, the researchers identified key genes with differential m6A methylation involved in cashmere fiber growth, suggesting these modifications may play a significant role in this process.
62 citations
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December 1966 in “Endocrinology” This study observed that injecting mice with α-MSH resulted in black hair regrowth in shaved and plucked areas, suggesting a potential link to the agent darkening hair in animals with a specific pituitary tumor.
1 citations
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February 1991 in “Journal of Biological Chemistry” 1 citations
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January 1981 in “Elsevier eBooks” Melatonin stops melanin production after tyrosinase action, with cyclic GMP mimicking this effect.
52 citations
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May 2011 in “Journal of Neuroendocrinology” This study found that palmitoylethanolamide may stimulate allopregnanolone synthesis and reduce oxidative stress in astrocytes through PPAR-α activation, suggesting a neuroprotective role.
In this study, researchers investigated the impact of a bioactive peptide derived from amphibians on hair follicle regeneration in diabetic skin, focusing on its potential to enhance wound healing and reduce infection risk.
This report describes a 7-year-old girl with monilethrix who showed significant improvement while on acitretin treatment, but symptoms returned after stopping the medication.
December 2022 in “Small methods” This study developed dissolving microneedles incorporating a new AR degrader for treating androgenetic alopecia, showing that a single application leads to superior hair regeneration compared to daily minoxidil, without systemic toxicity or androgen-related issues.
1 citations
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October 2022 in “Research Square (Research Square)” This study found that melatonin treatment in Cashmere goat kids enhances the density of secondary hair follicles and improves Cashmere quality by regulating the MAPK pathway and reducing cell apoptosis.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that inhibiting the Mitochondrial Pyruvate Carrier in human hair follicles ex vivo activated the integrated stress response, affecting cell proliferation and metabolism.
July 2024 in “Journal of Investigative Dermatology” This study found that topically applied melatonin exerts significant anti-aging effects on human scalp skin ex vivo, including increased SIRT1 expression and reduced mTORC1 pathway activity.
1 citations
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January 2020 in “VTechWorks (Virginia Tech)” This study found that early treatment with αCT1 in wound healing increased collagen synthesis and disorganization, potentially improving long-term scar appearance by altering early collagen matrix formation.
March 2025 in “Stem Cell Research & Therapy” This study found that microneedles containing magnetic intracellular vesicles and tremella polysaccharide improved the hair microenvironment and accelerated hair regeneration in mice with androgenic alopecia.
3 citations
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May 2018 in “Psychiatry and Clinical Psychopharmacology” In this report, an 18-year-old female with trichotillomania was successfully treated using the glutamate modulator n-acetylcysteine.
September 2021 in “Journal of skin and stem cell” Lactium, a milk protein, can help reduce symptoms of skin disorders linked to stress and anxiety without side effects.
January 2025 in “Biomedical Engineering Letters” This study reported that a new polymeric formulation for topical minoxidil delivery in an animal model improved hair growth and hair follicle formation more effectively than minoxidil in PBS, suggesting potential as a future hair loss treatment.
November 2022 in “Journal of Investigative Dermatology” In this study, a serum containing Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract improved hair growth and prolonged the anagen phase in a human scalp skin model.
12 citations
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February 2010 in “Tetrahedron Letters” This article describes the synthesis of novel polyamine-modified minoxidil analogs and conjugates to potentially enhance minoxidil's biological activity, selectivity, and water solubility, but reports no new biological results.