"I really like this peptide serum for a several reasons. First, and most importantly, it has a high concentration of peptides which make it more effect than other products that have only one peptide and in such an insignificant amount as to be ineffective. Secondly, it contains a strong humectant (Ahnfeltia Concinna Extract) which not only soothes and hydrates the skin, but also helps active ingredients stay in contact with the skin longer, aiding in their delivery. Lastly, it contains antioxidants which prevent further enviromental damage. My skin has looked plumper and less red in the few weeks that I've been using it. I'm also very acne prone and I would say that this in non-comedogenic! This is definately a great price for a great product!!"