Designed to activate, orchestrate and energize, this biologically-advanced anti aging cream like serum concentrate provides an unprecedented concentration of defensin molecules contained in the Age-Repair Defensin® Complex. Dermatologists and aesthetic professionals name defenins as a perfect retinol alternative and the 8-in-1 BioSerum as a retinol serum replacement. The best part? Results are equal to 8 separate serums.