June 1937 in “Science news-letter/Science news letter” Vitamin B can prevent hair from turning gray in rats.
June 2025 in “Research Journal of Pharmacy and Technology” In this study, researchers developed a herbal hair oil formulation using various herbs and oils designed to counteract greying, promote hair growth, and reduce dandruff, finding that the formulation met standard values for organoleptic characteristics, grittiness, sensitivity, pH, and viscosity.
This study explored the potential of custard apple extract in an herbal hair conditioner to improve smoothness, aid brushing, and provide other cosmetic benefits, including lice removal and anti-aging effects.
January 2026 in “Stem Cell Reviews and Reports” Hair graying may help prevent cancer by protecting stem cells.
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August 2023 in “Journal of Cosmetic Dermatology” Gynostemma pentaphyllum extract may help grow hair and prevent graying.