21 citations
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September 1990 in “Journal of The American Academy of Dermatology” Taking L-tryptophan supplements might cause a condition similar to scleroderma in some people, which can get better after stopping the supplement and starting corticosteroid therapy.
20 citations
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August 2020 in “Scientific Reports” Low-dose bisphenol A increases prostate size in rats by affecting certain enzymes.
18 citations
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February 2023 in “Plants” Purple glutinous rice extracts can help whiten skin and reduce aging signs.
18 citations
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January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
16 citations
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August 1989 in “PubMed” Retinol and L-cystine improve diffuse hair loss without side effects.
14 citations
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October 2011 L-Lysine may help with various health conditions, but results are inconsistent for herpes treatment and its potential in other therapies is still being explored.
12 citations
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June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
11 citations
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June 2012 in “Archives of Dermatological Research” L-cystine and vitamin B6 at high doses prevented hair loss in mice treated with a chemotherapy drug.
9 citations
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July 2020 in “Experimental Dermatology” Topical L-thyroxine may help with wound healing and hair growth but should be used short-term due to potential risks.
9 citations
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January 1992 in “Journal of Investigative Dermatology” Sugar molecule helps hair growth, less in balding, returns with treatment.
8 citations
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June 1981 in “Clinica Chimica Acta”
7 citations
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December 2020 in “Pharmaceutics” A mix of tocopherol acetate and L-menthol helps grow hair better than using them separately or using minoxidil.
7 citations
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April 2008 in “Progrès en Urologie”
7 citations
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January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
5 citations
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November 2010 in “Veterinary Record” The monkeys' skin infection was cured in eight weeks using oral terbinafine, topical washes, and disinfectant fogging.
4 citations
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January 1994 in “Yakugaku zasshi” EPC-K is stable except at very acidic pH or when exposed to sunlight, and it can decompose in low ethanol concentrations.
4 citations
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January 1989 Hair and nails can indicate selenium levels in the body.
3 citations
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October 2022 in “Han'gug dongmul jawon gwahag hoeji/Han-guk dongmul jawon gwahak hoeji/Journal of animal science and technology” Adding L-glutamine to the diet of Hanwoo steers may boost their immune system and help them cope with heat.
3 citations
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June 2021 in “Cosmetics” A mix of sulforaphane, L-menthol, and dexpanthenol could help increase hair growth and reduce hair loss.
3 citations
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January 2017 in “Journal of cosmetology & trichology” The food supplement with L-cystine, Serenoa repens extract, and biotin safely reduced hair loss and improved hair growth in men and women.
2 citations
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August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
2 citations
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December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
2 citations
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September 2011 in “Revista de Ciências Farmacêuticas Básica e Aplicada” The chili pepper shampoo was safe and well-liked by volunteers.
2 citations
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October 2010 in “BMB Reports” L-threonate may help prevent balding by blocking a key hair loss factor.
2 citations
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August 2008 in “Oncotarget” Apoptosis in hair follicles spreads through cell death signals, with stem cells slowing the process.
1 citations
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May 2025 in “International Immunopharmacology” L-borneol helps skin wound healing by promoting stem cell differentiation.
1 citations
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January 2020 in “Journal of Biosciences and Medicines” Red and black pop bean extracts protect against UV radiation and promote hair growth.
1 citations
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March 2012 in “Revue neurologique” Proper diet management is crucial for preventing severe symptoms in phenylketonuria.
March 2026 in “Revista Ibero-Americana de Humanidades, Ciências e Educação” L-PRF effectively improved healing and bone integration in dental implant surgery.
November 2025 in “Phytomedicine” L-rhamnose may promote hair growth by boosting energy production in cells.