{HEAD ~ Arginine}, lysine, and glutamic acid are preferably supplemented in {TAIL ~ the hydrogel matrix} 
preferably supplemented in
{ HEAD ~ Arginine } , lysine , and glutamic acid are preferably supplemented in { TAIL ~ the hydrogel matrix }
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL