Which Viral Skin Care Ingredients Are Worth it and Which to Skip​Which Viral Skin Care Ingredients Are Worth it and Which to Skip 

 From copper peptides to PDRN made from salmon DNA, social media is filled with advice and viral skin care ingredients, but which products actually deserve a spot in your routine? Board-certified dermatologist Marnie Nussbaum joins TODAY to break it all down.  ​​From copper peptides to PDRN made from salmon DNA, social media is filled with advice and viral skin care ingredients, but which products actually deserve a spot in your routine? Board-certified dermatologist Marnie Nussbaum joins TODAY to break it all down.