Each capsule contains:

Vitamin C (Ascorbic Acid) 250 mg.
Coenzyme Q-10  50 mg.

Recommended daily usage 50 mg.

Co Q-10 C is a powerful antioxidant, it aids in circulation, energy, stimulating the immune system, increasing oxygen to the tissues, and anti-aging.  This has added vitamin C to further enhance the immune system.

reference - Prescription for Nutritional Healing, by James F. Balch, M.D., Phyllis A. Balch, C.N.C.