Fruit Colour is a bioactivator based on phosphorus (P) and potassium (K), formulated to optimize phospho-potassic nutrition with an acidic pH, which promotes greater and faster assimilation, and to stimulate the metabolic activity of crops. The product supports key physiological processes, enhancing reproductive development and improving fruit quality. phosphorus is essential for cellular energy processes (ATP, NADPH), promotes floral differentiation, regulates hormonal balance, and is particularly useful during the early stages of the crop cycle and pre-flowering. Potassium stimulates the synthesis of sugars, starches, and pigments, and is crucial for the translocation of photosynthates and for processes related to fruit ripening. Fruit Colour improves nutrient uptake and translocation, stimulates photosynthesis, and the synthesis of phytohormones and amino acids, increasing flowering and fruit set efficiency. This results in improved yield and quality, with fruits characterized by higher sugar content (°Brix), greater uniformity, intense colouration, consistency, and enhanced shelf life.