PH Down Acidity Reduction – for hydroponics, coconut substrate, soil and soils. Terms of use: Used step by step, add a small amount to the water, check the acidity, repeat until you reach the desired level of acidity. Use an acidity meter for control. Ingredients: Contains nitric and phosphoric acids, organic regulators. Warning: In case of contact with skin may cause burns. In case of contact with eyes, rinse immediately with plenty of water. Eye burns require timely medical intervention. Wear gloves when using. Protect your eyes. Store in a dry and cool place, hermetically sealed.