Vitamin B-1 (Thiamine Mononitrate) is a vital nutrient to support the bodys immune health and tissue functions. B-Vitamins are linked with our bodys metabolic processes. This product was made without sugar, gluten, starch, preservatives, and artificial colors or flavors. Natures Blend products are manufactured in America from internationally sourced ingredients.Take one 100mg tablet per day, preferably with or after a meal, or as instructed by your trusted healthcare provider. Please review the label, ingredients, allergens, and other product information before purchase to ensure that this dietary supplement is suitable for you.