This study evaluates and compares the anti-inflammatory properties of silver nanoparticles (AgNPs) and zinc oxide nanoparticles (ZnONPs) synthesized using extracts from Ocimum tenuiflorum (African tulsi) and Ocimum gratissimum (black tulsi). The anti-inflammatory activity was assessed using three assays: bovine serum albumin (BSA) denaturation, egg albumin denaturation, and membrane stabilization. AgNPs and ZnONPs were synthesized using a green method involving the herbal extracts. The BSA denaturation assay showed that both nanoparticles inhibited protein denaturation in a concentration-dependent manner, with diclofenac sodium showing slightly stronger inhibition. Similarly, in the egg albumin denaturation assay, AgNPs and ZnONPs inhibited protein denaturation, with diclofenac sodium again showing slightly stronger inhibition. In the membrane stabilization assay, both nanoparticle types demonstrated concentration-dependent membrane stabilization, with diclofenac sodium showing slightly stronger stabilization. The results indicate that AgNPs and ZnONPs synthesized using Ocimum tenuiflorum and Ocimum gratissimum possess anti-inflammatory potential, as demonstrated by their ability to inhibit protein denaturation and stabilize cell membranes. While AgNPs showed slightly stronger inhibition in some assays, the differences were relatively small and may not have significant clinical implications. Both nanoparticles showed comparable anti-inflammatory effects, suggesting their potential as anti-inflammatory agents. The study highlights the potential of green-synthesized nanoparticles in biomedical applications, emphasizing their eco-friendly and biocompatible nature. Further research is needed to explore their clinical applications and safety profiles.This study evaluates and compares the anti-inflammatory properties of silver nanoparticles (AgNPs) and zinc oxide nanoparticles (ZnONPs) synthesized using extracts from Ocimum tenuiflorum (African tulsi) and Ocimum gratissimum (black tulsi). The anti-inflammatory activity was assessed using three assays: bovine serum albumin (BSA) denaturation, egg albumin denaturation, and membrane stabilization. AgNPs and ZnONPs were synthesized using a green method involving the herbal extracts. The BSA denaturation assay showed that both nanoparticles inhibited protein denaturation in a concentration-dependent manner, with diclofenac sodium showing slightly stronger inhibition. Similarly, in the egg albumin denaturation assay, AgNPs and ZnONPs inhibited protein denaturation, with diclofenac sodium again showing slightly stronger inhibition. In the membrane stabilization assay, both nanoparticle types demonstrated concentration-dependent membrane stabilization, with diclofenac sodium showing slightly stronger stabilization. The results indicate that AgNPs and ZnONPs synthesized using Ocimum tenuiflorum and Ocimum gratissimum possess anti-inflammatory potential, as demonstrated by their ability to inhibit protein denaturation and stabilize cell membranes. While AgNPs showed slightly stronger inhibition in some assays, the differences were relatively small and may not have significant clinical implications. Both nanoparticles showed comparable anti-inflammatory effects, suggesting their potential as anti-inflammatory agents. The study highlights the potential of green-synthesized nanoparticles in biomedical applications, emphasizing their eco-friendly and biocompatible nature. Further research is needed to explore their clinical applications and safety profiles.