This study was conducted to investigate the hair growth effects of Rehmannia root extract and the impact of utilizing micro-needling therapy (MTS). The subjects of the research were 12 women aged between 30 and 50 with genetic hair loss, randomly assi...
This study was conducted to investigate the hair growth effects of Rehmannia root extract and the impact of utilizing micro-needling therapy (MTS). The subjects of the research were 12 women aged between 30 and 50 with genetic hair loss, randomly assigned into three groups: experimental group, control group A, and control group B, with 4 participants in each group. The study period was from August 19, 2024, to October 23, 2024, lasting for 8 weeks. The experimental group received MTS followed by treatment with Rehmannia root extract, control group A received only MTS, and control group B received only Rehmannia root extract.
Measurements of hair density, hair count per follicle, and hair thickness were taken at five time points: before treatment, and at 2, 4, 6, and 8 weeks. All parameters showed statistically significant improvement by the 2-week mark compared to baseline. The change rates for hair density, hair count per follicle, and hair thickness were greatest in the experimental group compared to the other groups.
These results indicate that the combined treatment of Rehmannia root extract and MTS positively affects the improvement of hair density, hair count per follicle, and hair thickness. The bioactive components of Rehmannia root extract demonstrated a positive impact on hair growth and health in clinical settings, suggesting its potential as a new material for promoting hair health. The findings of this study are expected to provide foundational data for developing safe and effective new treatments that complement the limitations of existing hair loss therapies.