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Clinically Proven ch-OSAPlus Biotin Issued U.S. PatentsDietary SupplementRegenotin features clinically tested ch-OSA® (choline-stabilized orthosilicic acid) complemented with biotin. ch-OSA naturally helps nourish your body's beauty proteins by supporting and activating enzymes used by collagen-generating cells to make collagen. Regular orthosilicic acid (OSA) has to be stabilized to avoid polymerization a process that decreases bioavailability. ch-OSA's patented choline-stabilization technology prevents polymers from forming and ensures OSA's optimal absorption. By combining ch-OSA with biotin Regenotin offers an even greater level of beauty support.