In Mild/ Medium /Extra strength. A powerful peptide messaging serum containing the RNF-1 growth factor for cellular repair and regeneration of damaged, or aging tissue. Helps to promote new, healthy tissue by pushing up & out the old. Restores skin to its natural balance. Contains Allantoin to promote cellular healing and proliferation of new cells. Also contains niacinamide which is essential for skin nutrition, and a coenzyme that helps form red blood cells muscles, and other tissues. Boosted with vitamin E, this serum provides excellent antioxidant restoration and helps oxygenate the skin.