November 2025 in “Universidad Industrial de Santander” In this study, a hair cleansing tonic using Aloe vera and red onion was developed and found effective for promoting hair growth according to sensory tests by 30 panelists in Puerto Wilches, Santander, meeting microbiological safety standards.
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October 2020 in “Natural Products and Bioprospecting” This review discusses current topical treatments, natural products, and complementary therapies for androgenetic alopecia, but it reports no new clinical results.
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.
May 2025 in “International Journal for Research in Applied Science and Engineering Technology” In this study, researchers prepared and evaluated a herbal hair oil using various plant parts, reporting that the oil met all tested parameters and suggested benefits such as promoting hair growth and preventing dandruff, offering an alternative to chemical products.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated polyherbal formulations for managing hair issues such as dandruff, dryness, premature greying, baldness, and hair fall, but it reports no new clinical results.
