June 2021 in “World Journal Of Advanced Research and Reviews” In this study, researchers evaluated emulsions made with natural plant extracts and oils on guinea pigs, finding that a specific hydrophilic/lipophilic balance and globule size led to a stable emulsion and stimulated hair growth.
June 2021 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated the stability and capillary growth-stimulating activity of emulsions made with natural plant extracts and oils in vivo on guinea pigs, finding that specific hydrophilic/lipophilic balance and globule size contribute to a stable and effective formulation.
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January 2016 in “Springer briefs in molecular science” This chapter reviews the chemistry and potential benefits of plant-based hair dyes in cosmetics, but it reports no new clinical results.
December 2024 in “Planta Medica” This systematic scoping review synthesized evidence from 175 in vivo studies on the effects of plant-based substances on hair growth, using animal models such as mice and rabbits. The authors created a checklist to improve data comparison and reproducibility in future hair growth research.
July 2023 in “CRC Press eBooks” This review explores plant-based pharmacological advances for treating polycystic ovary syndrome, reporting no new clinical results but highlighting potential benefits for menstrual cycle regulation and testosterone reduction.