11 citations
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December 2016 in “Frontiers in Psychology” In this study, researchers used computer-generated models to demonstrate that subtle changes in hair diameter, density, and style significantly affect perceptions of age, health, and attractiveness.
73 citations
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January 2013 in “Annals of Dermatology” This study observed that patients with various types of hair loss had significantly lower serum zinc levels compared to healthy controls, suggesting zinc disturbance may play a role in the condition.
December 2022 in “Himi, himijn tehnologijn hùrèèlèngijn èrdèm šinžilgèènij bùtèèl” This study found that using the "Khalgai" hair care products enriched with copper and zinc for 28 days led to increased hair density, diameter, and follicular unit count in women, indicating improved hair morphology.
July 2018 in “International journal of clinical & experimental dermatology” This narrative review describes the components of human hair and their nutritional importance but reports no clinical results; the authors suggest dietary sulfur amino acids are essential for hair health.
June 2026 in “Quality in Sport” This narrative review analyzed the literature on premature hair graying, identifying potential contributors such as nutrient deficiencies, oxidative and emotional stress, smoking, genetic factors, autoimmune diseases, and medication side effects, but reported no effective treatment to reverse it, underscoring the necessity for further research.