research Garlic Exosomes Promote Hair Growth Through the Wnt/Beta-Catenin Pathway and Growth Factors July 2023 in “Cureus” Garlic can help hair grow by activating certain growth pathways, and it works whether you eat it or apply it to your scalp.
research Electrochemical Detector for Liquid Chromatography: Determining Minoxidil in Hair-Growth Pharmaceuticals July 2018 in “Current Analytical Chemistry” The method effectively detects minoxidil in hair-growth products.