it is liquid fertilizer.just like any botanicare product,if you want to use it just follow the directions on the back i don't think they differ to much from there new stuff 1tsp per gallon for vegging and 1 tbl spoon for aggressive flowering"something along those guidelines. i don't think it would change to much. list the ingredients. it ooks really familiar. im 99% positive ive used there old stuff but my memory is a little foggy although it looks the same.