Dietary Supplement. Vitamin B-Complex. Food allergen free. TwinLab B-50 Caps provide a high potency, synergistic combination of B-Vitamins. TwinLab B-50 Caps are easier to swallow and assimilate. Well tolerated by most highly allergic individuals. No tablet binders, coatings or colorings. Free of the most common allergens such as soy, yeast, rice, barley, wheat, lactose (milk sugar) and all milk, citrus, fish and egg products. No added sugars, salt, artificial sweeteners, colorings, preservatives or salicylates.