SOUL ROSSBSC Nutrient, White Soul big swell bloom booster has been designed specifically to increase flower size, vigor, density, and quality. Our extensive hands-on research has resulted in a distinctive formula of botanical extracts, amino acids, and versatile carbohydrates combined with a specific ratio of readily available phosphorus and potassium. Soul big swell can be used as an additive in conjunction with any base nutrient program for exceptional results.