from 0.1 to 50% by {TAIL ~ weight} of {HEAD ~ a bleaching agent}; and 
from 0.1 to 50 % by { TAIL ~ weight } of { HEAD ~ a bleaching agent } ; and
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH