12 citations
,
June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
11 citations
,
November 1990 in “Archives of Dermatology” A woman developed a persistent skin rash and hair loss from a condition linked to her increased L-tryptophan intake.
9 citations
,
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
,
January 1992 in “Journal of Investigative Dermatology” Sugar molecule helps hair growth, less in balding, returns with treatment.
8 citations
,
June 1981 in “Clinica Chimica Acta”
7 citations
,
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
,
April 2008 in “Progrès en Urologie”
7 citations
,
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
,
November 2010 in “Veterinary Record” The monkeys' skin infection was cured in eight weeks using oral terbinafine, topical washes, and disinfectant fogging.
4 citations
,
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
,
January 1989 Hair and nails can indicate selenium levels in the body.
3 citations
,
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
,
June 2021 in “Cosmetics” A mix of sulforaphane, L-menthol, and dexpanthenol could help increase hair growth and reduce hair loss.
3 citations
,
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
,
August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
2 citations
,
December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
2 citations
,
September 2011 in “Revista de Ciências Farmacêuticas Básica e Aplicada” The chili pepper shampoo was safe and well-liked by volunteers.
2 citations
,
October 2010 in “BMB Reports” L-threonate may help prevent balding by blocking a key hair loss factor.
2 citations
,
August 2008 in “Oncotarget” Apoptosis in hair follicles spreads through cell death signals, with stem cells slowing the process.
1 citations
,
May 2025 in “International Immunopharmacology” L-borneol helps skin wound healing by promoting stem cell differentiation.
1 citations
,
January 2020 in “Journal of Biosciences and Medicines” Red and black pop bean extracts protect against UV radiation and promote hair growth.
1 citations
,
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 “Eurasian journal of applied biotechnology” Combining L-cysteine, NAC, and a MET inhibitor significantly kills cervical cancer cells.
November 2025 in “Journal of Kufa for Chemical Sciences” L-Selectin and adiponectin can help identify PCOS patients who respond to Metformin treatment.
March 2025 in “HAL (Le Centre pour la Communication Scientifique Directe)” De nouvelles thérapies promettent de mieux traiter la perte de cheveux due à l'alopécie androgénétique.
January 2025 in “Journal of Plastic Reconstructive & Aesthetic Surgery” Two L-PRP treatments improve hair density in mild to moderate alopecia.
September 2024 in “Journal of the American Academy of Dermatology” The supplements improved hair density and reduced hair loss.
July 2024 in “Skin Appendage Disorders” The supplement significantly improves hair density and appearance in people with hair loss.
June 2023 in “Italian journal of dermatology and venereology” The oral supplement improved hair loss in patients with telogen effluvium.