Mills Nutrients C4C4 is an addition for blooming or flowering plants. It encourages the production of oil and sugar. C4 is an advanced bloom stimulator designed to assist the plants delivery of carbohydrates, macro and micronutrients, and trace minerals to developing flowers and facilitate the triggering and maturation of complex essential oils appropriate for the early and mid stages of flower development. When used with Basis A&B it alters the NPK to have a higher