Natural Factors BioCoenzymated Benfotiamine B1 - Providing highly bioavailable coenzymated vitamin B1, plus bioactive thiamine diphosphate, alongside Farm Fresh Factors an organic whole food blend of land and sea vegetables. Benfotiamine and sulbutiamine are biologically active forms of thiamine (vitamin B1), a nutrient that is essential for healthy nerve function and for the metabolism of lipids, carbohydrates, and proteins. Ready-to-use benfotiamine and sulbutiamine offer immediate and direct nutritional support, even for those with impaired metabolism.