The supplement contains concentrated strontium. 10 ml of product raises the level of strontium by 2 mg/l in 100 litres of water. Recommended Strontium Level in Water aquarium is 5.00 – 15.00 mg/l. It causes serious damage to the eyes. Keep out of reach of children. Wear eye protection. IN CASE OF GETTING INTO THE EYES: Rinse carefully with water for a few minutes. Remove contact lenses if they are and can be easily removed. Continue to rinse. Contact Us Immediately POISON CENTER/doctor. Dispose of the contents/container until appropriate marked waste containers.