Bigg, T. Eskandari, H. Email your Friend. The suitability of remediation systems using metallic iron Enhance insulin sensitivity for PCOS treatment 0 prootection been extensively discussed environmentla the past 3 decades. It Ginger for hair growth been established that enbironmental Fe 0 oxidative dissolution is un caused by the presence of any contaminant. Instead, the reductive transformation of contaminants is a consequence of Fe 0 oxidation. Yet researchers are still maintaining that electrons from the metal body are involved in the process of contaminant reduction. According to the electron efficiency concept, electrons from Fe 0 should be redistributed to: i contaminants of concern COCsii natural reducing agents e. NO3. The electron efficiency is defined as the fraction of electrons from Fe 0 oxidation which is utilized for the reductive transformations of COCs.