Marine Collagen by GelProGelPro Marine Collagen Gelpro is fixated on excellence and quality as they are with every product they create. Their revolutionary Microactive collagen peptides, which help ensure enhanced bioavailability, are now included in their new and improved Marine Collagen. Sourced exclusively from wild caught cod skin. Fish skin is a premium collagen source and does not require harsh chemicals as scales do. Not from fish scales which contain lesser quality