This study found that applying amaranthus extract cream to the scalp significantly improved terminal hair density, anagen hair count, and pilary index in men with male pattern hair loss, suggesting it may be a safe and effective supportive therapy.
January 2026 in “International Journal of Health Engineering and Technology” In this study, researchers evaluated the effects of green spinach leaf extract on hair growth in New Zealand rabbits and found that the 15% concentration formula resulted in the highest average hair growth compared to other concentrations and controls.
January 2026 in “Indus journal of bioscience research.” In this study, Hibiscus rosa-sinensis extract was used to formulate and evaluate herbal cosmetic creams for their antioxidant properties, stability, and effectiveness. The formulations demonstrated strong antioxidant potential, stability under various conditions, and favorable cosmetic qualities, suggesting HRS as a beneficial ingredient in skincare products.
January 2025 in “Nanotechnology Reviews” This study reported a green synthesis method for copper oxide nanoparticles using pumpkin seed extract, achieving significant antibacterial activity against Bacillus subtilis and moderate cytotoxic effects against certain cancer cell lines, indicating potential biomedical applications for these eco-friendly nanomaterials.
This literature review suggests that Cyperus rotundus L extract is a promising natural agent for promoting hair growth due to its bioactive compounds and mechanisms of action, but emphasizes the need for further human clinical trials to confirm its safety and effectiveness.