ADVANCED MICELLEXL Slow Digesting Casein Protein. TRUE STRENGTH OF RESTRUCTURED MICELLAR CASEIN. Platinum Tri-Celle Casein is the pinnacle of the slow-digesting protein lineup. By using novel, patent pending MicelleXL technology, ON combined micellar casein molecules into a structure that is approximately triple the average size. These super-sized molecules form an ultra thick gel that takes several hours to be digested and absorbed, providing sustained release amino acid delivery for lasting lean muscle support. Each serving of Platinum Tri-Cell Casein also delivers the relaxing properties of L-theanine to help you make the most of you post-workout recovery. Taken between meals or before bed, ON thinks you'll agree that their slowest casein is the easiest to mix, most versatile and exceptional tasting anti-catabolic protein they're ever made. BEYOND THE BASICS. ON's Slowest & Best Tasting Casein yet. 30 Grams of Protein From an Advanced Casein Protein Blend. Exclusive MicelleXL Restructured Micellar Casein Technology. Lactium Milk Protein Hydrolysates. Lasting Amino Acid Delivery Between Meals and before Bed. L-Theanine to Help You Make The Most of Your Post-Workout Recovery. Excellent Source of Calcium with 60% DV per Serving. Anti-Catabolic Muscle Support.