Corrosion inhibitors are primarily produced from amino acids and other materials, significantly reducing the corrosion rate of metals under normal use. They exhibit excellent capability in inhibiting hydrogen evolution during the acid pickling of steel, preventing hydrogen embrittlement. At the same time, they suppress the corrosion of metals caused by Fe3+ during acid pickling, avoiding pitting corrosion. This product can be used in metal acid pickling processes to mitigate acid attack on the metal substrate and demonstrates effective corrosion inhibition across various chemical acid cleaning applications.