49 citations,
October 2017 in “Nutrients” Equisetum debile extract, especially the ethyl acetate type, may be a promising natural ingredient for anti-hair loss products.
45 citations,
August 2010 in “Hormone Molecular Biology and Clinical Investigation” Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
44 citations,
January 2007 in “Biological & pharmaceutical bulletin” Black pepper leaf extract contains compounds that can block testosterone effects and promote hair growth.
37 citations,
January 2009 in “Sexual Development” Fadrozole and Finasteride change frog sex ratios and cause intersex animals with altered gene expressions.
36 citations,
November 2020 in “Journal of The European Academy of Dermatology and Venereology” 5-alpha-reductase inhibitors may reduce COVID-19 symptoms in bald males.
35 citations,
January 2014 in “Postepy Dermatologii I Alergologii” DHT's role in hair loss is important, but measuring its level for diagnosis is questionable.
35 citations,
April 2013 in “Sexual medicine reviews” 5-alpha reductase inhibitors slightly increase the risk of sexual and mood side effects, and breast growth in men.
34 citations,
August 2011 in “Journal of Natural Medicines” Puerariae Flos extract may help treat hair loss by blocking a hair loss-related enzyme and promoting hair growth.
34 citations,
February 1993 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
33 citations,
April 2015 in “Current Opinion in Endocrinology, Diabetes and Obesity” 5α reductase inhibitors treat hair loss but may cause sexual side effects and risks.
32 citations,
February 2024 in “Growth Hormone & IGF Research” Dihydrotestosterone (DHT) stops hair growth in mice by lowering a growth factor important for hair.
30 citations,
December 2017 in “Medical Hypotheses” The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.
30 citations,
September 2016 in “BMJ” Taking 5-α reductase inhibitors for prostate enlargement or hair loss does not significantly raise the risk of erectile dysfunction.
29 citations,
April 2019 in “Lasers in Medical Science” Laser and minoxidil combo promotes better hair growth than minoxidil alone, safely.
28 citations,
August 2014 in “Cancer Causes & Control” Taking 5α-reductase inhibitors does not significantly increase the risk of breast cancer in men.
28 citations,
November 2003 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” The normal human prostate does not significantly affect blood DHT levels.
27 citations,
May 2015 in “Neuropharmacology” Dutasteride protects dopamine neurons in Parkinson's mice, but Finasteride doesn't.
26 citations,
June 2005 in “Journal of Molecular Endocrinology” Dutasteride is more efficient than finasteride, but individual results vary.
22 citations,
November 2008 in “International Journal of Dermatology” A mix of 5-aminolevulinic acid and iron ion can speed up hair growth.
20 citations,
May 2018 in “The Journal of Urology” Men taking 5-alpha-reductase inhibitors before or after bladder cancer diagnosis had a lower risk of dying from the disease.
19 citations,
April 2020 in “Dermatologic Therapy” Dutasteride works better than finasteride for hair loss, with both being safe to use.
19 citations,
January 2016 in “Annals of Dermatology” Dutasteride is safe and effective for treating hair loss, but may decrease libido.
19 citations,
April 2015 in “European Journal of Pharmacology” Dihydrotestosterone (DHT) doesn't affect rat skin cell growth, but it does change cell cycle, protein levels, and other cell functions, potentially shortening hair growth cycle.
18 citations,
March 2020 in “Frontiers in Neuroendocrinology” The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.
18 citations,
February 2012 in “Experimental Dermatology” No link found between specific genes and female pattern hair loss.
18 citations,
April 2011 in “International Journal of Molecular Medicine” Dihydrotestosterone causes p27 protein breakdown in ovarian and breast cancer cells by binding with SKP2.
18 citations,
March 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Estrogen increases blood vessel growth factor production, while testosterone blocks this increase.
17 citations,
March 2020 in “Frontiers in Chemistry” Compounds from the plant Mammea siamensis may help treat hair loss.
15 citations,
January 2017 in “Experimental Neurology” Finasteride reduces movement issues in Parkinson's disease rats.
15 citations,
November 2015 in “Pharmacopsychiatry” α-Blockers and 5-ARIs for BPH can cause sexual dysfunction, including erectile and ejaculatory issues.