December 2025 in “Frontiers in Nutrition” This review suggests that although hydrolyzed collagen peptides with certain supplements may improve skin elasticity and joint function, evidence for collagen's anti-aging and regenerative benefits remains inconsistent.
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November 2011 in “Dermatologica Sinica” This study found a significant decline in serum zinc levels among women of African descent using hair relaxers and experiencing alopecia, with age at first exposure potentially influencing alopecia development.
April 2026 in “International Journal of Drug Delivery Technology” In this study, phytochemical analysis and molecular docking suggested that bioactive compounds in several Ayurvedic herbs may interact persistently with hair growth and antifungal protein targets, indicating potential as plant-based treatments for dandruff and hair loss.
December 2021 in “Trichology and cosmetology:” This study demonstrated that a daily oral supplement of 1000 mg Kera-Diet® improved hair and nail conditions in women experiencing acute telogen effluvium and brittle nail syndrome over three months.
In this clinical trial, the researchers observed that a biotin and silica supplement reduced hair fall, increased hair growth rate, and improved skin elasticity, hydration, and nail quality over 90 days without adverse effects.