presentationa white powder in a clear hard shell capsule.each capsule delivers: thiamin (vitamin b1) 100mg encapsulated with: microcrystalline cellulose capsule shell (hydroxypropyl methylcellulose) silicon dioxide magnesium stearate. disintegration time less than 30 minutes. suitable for vegetarians.usage & administration1 capsule daily. other information allergen advice see presentation section for ingredients listed in bold. the following list of allergens are excluded: wheat barley soya eggs milk (and milk products) lactose nuts sulphites celery fish shellfish yeast and gluten containing ingredients.cautions this product is not recommended for pregnant or lactating women.storage instructions to be stored in a cool dry place and protected from light.legal category food supplement.