Component 2 is utilized at {HEAD ~ amounts} effective to enhance {TAIL ~ the effect} of Component 1 
effective to enhance
Component 2 is utilized at { HEAD ~ amounts } effective to enhance { TAIL ~ the effect } of Component 1
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH