C9, or "Clean 9," is a 9-day body-cleansing program by Forever Living that aims to kick-start a healthier lifestyle and promote sustainable weight management through a calorie-reduced diet, light exercise, and nutritional supplements like aloe vera, plant protein, and thermogenic blends. The program focuses on cleansing the body, optimizing nutrient absorption, and resetting habits to help users feel lighter, more energetic, and better equipped for long-term weight management.