PantéthineActive form of vitamin B5 Key nutrient for good adrenal function. Most active and effective form of vitamin B5. Supports good cholesterol, liver health and detoxification. Pantethine is the active form of vitamin B5 or pantothenic acid. Supplementing with regular pantothenic acid does not necessarily increase the body's pantethine levels, since the conversion process is tightly regulated. Pantethine is involved in hundreds of metabolic processes,