Originally designed to be used in between the Age Intervention Regeneration Booster series, Age Intervention Peptide Extreme is the most concentrated proprietary peptide formula ever created. It features four peptide blends that benefit all skin types, as well as powerful antioxidants and anti-inflammatory ingredients. It helps increase collagen and elastin production, immediately hydrates, reduces redness and irritation, firms and promotes radiance, resulting in a visible response on every measurable level. | Jan Marini Age Intervention Peptide Extreme, 1 fl. oz | Dermstore