Prestige Proteins 5300 West Atlantic Avenue Suit 412 Delray Beach, Florida 33481-8165. Your one stop worldwide source for Industrial Lactic Acid Casein, Edible Casein, Rennet Casein, Sodium Caseinate, Calcium Caseinate, Caseinates, Caseinate blends, Paper Coatings, and other Casein related products check us out!