Hesi SuperVit is Hesi’s flagship product that stands out in the domestic hydroponic industry as having no immediate rivals. Providing a unique blend of vitamins and amino acids not found in any other plant health product that we know of, it has the ability to strengthen plants against attack from disease and increase nutrient uptake resulting in green, vigourous plants that produce extremely high yields. This really is one of the best products for all round plant health that we have had the pleasure to use - highly recommended. Dosage rate:- 1ml per 65 litres of nutrient solution, a pippette is supplied with the 50ml and 100ml sizes to make this easy to measure out. The 10ml bottle has a dropper top that lets out one drop at a time, each drop does 4-5 litres of nutrient solution.