Dutchpro provides thehighest concentratepossible to allow you to pay less for more nutrients. By followingLiebig's Law of the Minimum, they ensure balanced plant health. With Dutchpro, plants increase their nutrient absorption to become healthier/more energetic and disease-fighting. By not using heavy metals or PGRs, they ensure aclean and food-gradeapproved product. High quality doesn't mean more money.