Marine collagen is hydrolyzed into tiny peptides small enough to cross the gut barrier and reach the dermis. NORDPURE peptides are processed to a 3 kDa molecular weight, approximately one-third the size of bovine collagen and the threshold at which absorption efficiency peaks. Clinical studies show 17.4% increase in skin moisture after 16 weeks and 1.5x higher absorption versus bovine collagen. Vitamin C synergy supports natural collagen synthesis.