The article describes the evidence-based biological and clinical protective effects of the IPH LGA peptide. Data are presented that there is a high biological activity of the IPH LGA peptide in terms of controlling the normal formation of the hormonal background, regulating the effect on the functional activity of the testes and spermatogenesis in humans at the genetic level according to gene expression data on cell culture. The article proves that the IPH LGA peptide has an anti-inflammatory and normalizing effect on testicular cells based on the experimental model data, and also increases the reproductive function by increasing the activity of spermatozoa according to experimental studies.