research OPTIMIZATION OF NANO GEL FORMULATION BASED ON BANGKAL (NAUCLEA SUBDITA) WOOD BARK EXTRACT AND ANTIBACTERIAL ACTIVITY AGAINST PROPIONIBACTERIUM ACNES
This study formulated a nanogel with Bangkal bark extract that showed moderate antibacterial activity against Propionibacterium acnes, with the F3 formulation (8% extract) achieving the highest inhibition zone of 8 mm, suggesting potential as a natural acne treatment.