March 2025 in “Research Journal of Pharmacognosy and Phytochemistry” This source describes herbal onion oil as a natural and chemical-free blend that may promote hair and scalp health by stimulating hair growth, soothing scalp irritations, and protecting against environmental damage, suitable for various hair types and concerns.
January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This study investigated an herbal hair oil and shampoo formulation incorporating onion, neem, and flaxseed extracts, finding it effectively reduces hair fall and provides antifungal and conditioning benefits, thus offering a natural alternative to synthetic hair care products.
January 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated an herbal hair oil and shampoo made from onion, neem, and flaxseed extracts, finding that this natural formulation effectively addresses hair fall, offers antifungal benefits, and provides conditioning properties, presenting a stable and eco-friendly alternative to synthetic products.
October 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review reports that onion-derived products, like juice and oil, show potential benefits for hair regrowth in alopecia areata and scalp health due to their rich phytochemical content, but notes that further standardized formulations and rigorous clinical trials are needed to substantiate these effects.
October 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review synthesizes current research on onion-derived preparations for scalp and hair health, highlighting their potential benefits in hair regrowth, microbial reduction, and follicular support, while noting gaps in standardized formulations and controlled clinical trials.