13 citations
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July 2015 in “Archives of dermatological research” N1-methylspermidine helps hair growth and reduces inflammation in hair follicles.
12 citations
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December 2009 in “Amino Acids” Putting α-methylspermidine on mouse skin can start hair growth.
3 citations
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May 2018 in “Italian journal of dermatology and venereology” The lotion with N1-methylspermidine and Sandalore® effectively reduces hair loss and promotes hair growth.
November 2013 in “Tampere University Institutional Repository (Tampere University)” Tudor-SN is important for immune cells, and polyamines can promote hair growth.
17 citations
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May 2021 in “Journal of Cell Science” N1-acetylspermidine promotes hair follicle stem cell self-renewal.
20 citations
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January 2021 in “GeroScience” Spermidine helps protect against aging by preserving telomere length.
10 citations
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July 1980 in “British Journal of Dermatology” Topical putrescine and spermine increased DNA synthesis in hairless mouse skin.
3 citations
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April 2002 in “Animal Science” Spermidine injections increased wool growth rate in lambs without changing fibre thickness.
61 citations
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July 2011 in “PLOS ONE” Spermidine may help reduce hair loss and deserves further testing as a treatment.
42 citations
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February 1996 in “Journal of Investigative Dermatology” Polyamines, especially spermidine, are essential for hair growth.
October 2025 in “Physiologia” Spermidine may improve skin health and hair growth by enhancing cell function.
19 citations
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March 2016 in “Frontiers in Plant Science” Spermidine is essential for plant growth and adaptation to stress.
13 citations
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March 1999 in “Biochemical Journal” Overexpressing SSAT in mice makes them highly sensitive to polyamine analogues, causing liver damage and high mortality.
54 citations
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May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
54 citations
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February 2002 in “Carcinogenesis” Increasing SSAT makes skin more prone to cancer.
37 citations
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February 2005 in “Journal of Investigative Dermatology” Overexpression of SSAT causes hair loss and skin issues, but reducing putrescine can help.
January 2025 in “MEDS Public Health and Preventive Medicine” Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.
305 citations
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March 2008 in “AJP Endocrinology and Metabolism” SSAT is a key enzyme affecting cell growth and metabolism, with potential but risky use in disease treatment.
8 citations
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October 2017 in “Dermatology practical & conceptual” A spermidine-based supplement may help hair grow longer by keeping it in the growth phase.
November 2012 in “Journal of Clinical Pathology” 75 citations
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June 2007 in “Journal of Biological Chemistry” MT-DADMe-ImmA can selectively kill head and neck cancer cells without harming normal cells.
91 citations
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July 2004 in “Journal of Biological Chemistry” Overexpressing SSAT enzyme reduces prostate tumor growth in mice.
April 2024 in “The Journal of urology/The journal of urology” SRD5A2 methylation in blood can predict how well someone will respond to finasteride treatment.
43 citations
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February 1999 in “Biochemical Journal” Overexpression of SSAT in mice causes hair loss, liver damage, and sensitivity to polyamine analogues.
February 2026 in “Toxicology Letters” MK-0773 is a moderate inhibitor of the SRD5A2 enzyme.
3 citations
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June 2011 in “EFSA Journal” Spermidine's effect on hair growth is not proven.
10 citations
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June 2001 in “Annals of neurology” Alzheimer's patients have higher levels of certain chemicals in their hair.
April 2026 in “ACS Applied Materials & Interfaces” Sper-12 nanoparticles may help treat hair loss by delivering siRNA to target androgen receptors.
2 citations
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November 2017 in “Histochemistry and Cell Biology” Polyamines are abundant in certain parts of rat hair follicles and may play a key role in hair growth.
1 citations
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December 2011 in “EFSA Journal” Spermidine may help extend the growth phase of hair.