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.
January 2026 in “Journal of Clinical Case Studies” This article discusses the potential of copper tripeptide (GHK-Cu) to support collagen synthesis and antioxidant activity in the context of androgenetic alopecia but reports no clinical results.
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September 2024 in “Cureus” In this study, using a 15-day regimen combining a scalp scrub and serum significantly improved dandruff and scalp health in participants, reducing flaking, increasing hair density and thickness, and enhancing hydration and overall scalp appearance.
April 2023 in “Acta Poloniae Pharmaceutica” This study found that using Urtica cannabina extract shampoo led to increased levels of copper, zinc, and iodine in the scalp hair of Mongolian women, along with improvements in hair growth, diameter, and density compared to a regular shampoo.
June 2025 in “Clinical Cosmetic and Investigational Dermatology” This study examined the factors contributing to gray hair, such as genetics and lifestyle, and found that while graying correlates with some health conditions, it is primarily a physiological process rather than a pathological one.