Dietary Supplement. With Choline, Inositol & PABA. In two convenient capsules. Optimums Nutrition's High Potency Stress B-Complex plus Vitamin C is made with the finest raw materials. Two capsules provide all of the B-Complex Vitamins, Vitamin C, Choline, Inositol and PABA in appreciable amounts. High Potency Stress B-Complex plus Vitamin C is produced and packaged in our own state-of-the-art, OTC approved facility. High Potency Stress B-Complex plus Vitamin C is free of fillers, preservatives and many common allergens such as corn, yeast, wheat and dairy.