there is a difference in color beetween standardized and non standardized extracts
standardized may be lighter than plain leaf while non is dark
good companies usually standardize thier extracts to get rid of the black waxes and fats that you dont want in your lungs
maybe you are immune
they say 1 out of every 10 people are
but also sometimes for some people they need to build up the chem in thier bodies a little
try again
take huge ass hits and hold for 30 seconds
HUUUUUUGE HITS