RejuveneX Factor Firming Serumsalicylic acid to support production of new skin cells</br>RejuveneX Factor Firming Serum contains Poly P to support the production of collagen</br>RejuveneX Factor Firming Serum contains Taurine to help inhibit premature aging</br></br>Product Description</br></br>Life Extension RejuveneX Factor Firming Serum provides 10 new compounds in a nutrient-dense?? deep-penetrating serum to promote the appearance of more youthful?? firmer?? healthier?? and more vibrant skin.</br><br/>http://www.amazon.com/gp/product/B007ZDFRVM