Coenzymated B-1, 25 mg, 30 Lozenges - Source NaturalsSource Naturals Coenzymated B1, 25 mg, 30 Lozenges, offers a convenient and efficient way to support your body's energy production and neurological health. This product features thiamin diphosphate (TDP), also known as thiamin pyrophosphate (TPP) or cocarboxylase, which is the active coenzyme form of vitamin B1. Unlike regular B1 supplements that need to be converted into their active forms by the body, Coenzymated B1 is already in its active form,