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    1. A prospective real-world study evaluating serum levels of arginine and cysteine in women with chronic telogen effluvium: do we really need blanket prescription of amino acid supplementation? Clinical and Experimental Dermatology · 2022 · 1 citations
    2. Comment on 'A prospective real world study evaluating serum levels of arginine and cysteine in females with chronic telogen effluvium: do we really need blanket prescription with amino acid supplementation?' Clinical and Experimental Dermatology · 2022
    3. Oral Supplementation with l-Cystine, <i>Serenoa repens</i>, <i>Cucurbita pepo</i>, and <i>Pygeum africanum</i> in Chronic Telogen Effluvium and Androgenetic Alopecia: A Double-Blind, Placebo-Controlled, Randomized Clinical Study Skin Appendage Disorders · 2024
    4. Efficacy of Oral Supplementation with Serenoa Repens, Pumpkin Seed Extract and Cysteine Combined with Topical Minoxidil 5% Vs Topical Minoxidil 5% Alone in Androgenic Alopecia A Randomised Assessor-Blinded 6-Month, Superiority Trial Clinical & Experimental Dermatology and Therapies · 2025
    5. 51252 Oral supplementation with L-Cystine, Serenoa repens, Pumpkin seed oil and Pygeum africanum in Chronic Telogen Effluvium and Androgenetic Alopecia: A double-blind, placebo-controlled, randomized clinical study Journal of the American Academy of Dermatology · 2024
    6. Organization and Expression of Hair Follicle Genes. 1993 · 48 citations
    7. Cysteine Prevents the Reduction in Keratin Synthesis Induced by Iron Deficiency in Human Keratinocytes Journal of Cellular Biochemistry · 2015 · 40 citations
    8. Efficacy and Safety of a Food Supplement Containing L-cystine, Serenoa repens Extract and Biotin for Hair Loss in Healthy Males and Females. A Prospective, Randomized, Double-blinded, Controlled Clinical Trial Journal of cosmetology & trichology · 2017 · 3 citations
    9. Efficacy and Safety of L-Cystine Associated or not to a Natural Keratin (Kera-Dietandreg;) Hydrolysate on Hair and Nails: Randomised, Placebo-Controlled, Clinical Trial on Healthy Females Journal of cosmetology & trichology · 2019
    10. Alopecia in Rats Fed Certain Soybean Oil Meal Rations. Experimental biology and medicine · 1946 · 9 citations
    11. Role of Non Androgenic Factors in Hair loss and Hair Regrowth Journal of cosmetology & trichology · 2017 · 7 citations
    12. Dissecting hair breakage in alopecia areata: the central role of dysregulated cysteine homeostasis Amino Acids · 2024 · 3 citations
    13. Evaluation effects of essential amino acids and zinc and iron supplementation on the prevention of early hair loss after sleeve gastrectomy Annals of Bariatric Surgery · 2022
    14. The effect of dietary modulation of sulfur amino acids on cystathionine β synthase–deficient mice Annals of the New York Academy of Sciences · 2015 · 14 citations
    15. Protein and sulphur amino acid nutrition of hair fibre-producing Angora and Cashmere goats Livestock production science · 2000 · 38 citations
    16. In vitro methodology, hormonal and nutritional effects and fibre production in isolated ovine and caprine anagen hair follicles Animal · 2010 · 7 citations
    17. Nutrition of women with hair loss problem during the period of menopause Przeglad Menopauzalny · 2016 · 15 citations
    18. Nutrition and Hair Dermatologic Clinics · 2012 · 98 citations
    19. Efficacy of Compound GV-350 with Tricofer® Iron, Cystine and Biotin in the Management of Telogen Effluvium in Women with Iron Deficiency 2025
    20. Collagen supplementation and regenerative health: advances in biomarker detection and smart material integration Frontiers in Nutrition · 2025
    21. Chemoprevention of doxorubicin-induced alopecia in mice by dietary administration of l-cystine and vitamin B6 Archives of Dermatological Research · 2012 · 11 citations
    22. The Effects of the Oral Supplementation with a Natural Keratin Hydrolysate (Kera-Diet®) on Hair and Nails: Randomized, Placebo and Benchmark-Controlled Clinical Trial on Healthy Females Trichology and cosmetology: · 2021
    23. Betaine supplementation is less effective than methionine restriction in correcting phenotypes of CBS deficient mice Journal of inherited metabolic disease · 2015 · 19 citations
    24. Evaluation of a Combination of Cystine, B Vitamins and Minerals, in the Management of Diffuse Hair Loss in Women: A Prospective, Open-Label Study Preprints.org · 2026
    25. Oxidative stress in ageing of hair International Journal of Trichology · 2009 · 126 citations
    26. METABOLIC DISOEDEKS AND HAIE GEOWTH British Journal of Dermatology · 1971 · 15 citations
    27. Oral Supplementation of Nicotinamide Mononucleotide (NMN) Improves Hair Quality and Subjective Perception of Hair Appearance in Middle-Aged Women Cosmetics · 2025
    28. Effects of the Usage of l-Cysteine (l-Cys) on Human Health 2018 · 75 citations
    29. Dietary supplement increases anagen hair rate in women with telogen effluvium: results of a double-blind, placebo-controlled trial Therapy · 2006 · 47 citations
    30. L-Cystine-Containing Hair-Growth Formulation Supports Protection, Viability, and Proliferation of Keratinocytes Clinical, Cosmetic and Investigational Dermatology · 2020 · 2 citations