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In this study on rat dermal papilla cells, hydroxytyrosol, an antioxidant found in olive oil, was reported to protect against oxidative stress, reduce inflammation, and enhance hair growth factors, suggesting its potential to prevent hair loss.

This study found that hydroxytyrosol significantly alleviated acute liver injury in mice by suppressing inflammation and targeting the TNF-α/PI3K/AKT signaling pathway.

This study suggests that hydroxytyrosol may influence inflammation and oxidative stress pathways in androgenetic alopecia, particularly through interaction with the PTGS2 gene, warranting further experimental validation.

In this study, researchers developed a delivery system using a deep eutectic solvent to improve hydroxytyrosol absorption for hair regrowth, achieving over threefold greater skin penetration compared to aqueous solutions and demonstrating its effectiveness and biocompatibility in hair regrowth and ROS-scavenging tests.

This review found that olive oil phenols may have anti-cancer properties in animal models and some human studies, but further research is needed to confirm these effects in humans.