Numerous failures and eventual losses in the oil and gas industry have been traced to corrosion processes. Failures resulting from the inability of metals to support designed load requirement because of losses imposed by corrosion effects and this can be combated economically through the use of chemical inhibitors despite the fact that synthetic inhibitors are effective, nonetheless they are associated with problems of toxicity disposal litigation and enormous cost. In order to protect the environment and reduce cost the use of green or natural inhibitors as substitute and partial replacement of chemical inhibitors have become a method of choice, however inhibitors are environment specific therefore necessitating for the need for deep research into metal-inhibitor-media combination that would produce the best result In this study natural inhibitor will be employed on mild steel and aluminum respectively in a hydrochloric environment. lasienthera africanum (LA) was adopted to be the natural inhibitor. For mild steel and aluminum specimen, these samples were sourced from chemical industries and workshops and were immersed in O.5M HCL solution in the absence and presence of varying inhibitor concentrations. For a period of 18 days. Weight Loss (WL) technique was adopted and WL data’s were recorded for every 2 days for 18 days. WL experiment was perfonned and corrosion rate was calculated, out of which the highest inhibition efficiency LA of O.6g was (94.93%) for mild steel and (99.56%) for aluminum O.6g concentration of LA performed best for mild steel and aluminum immersed in HCL respectively. Thus the control of corrosion induced wastage of infrastructure through the use of natural inhibitor system could be use to mimic the exact corrosion process rather than costly experimentation are major contributions of this work.