presentationa white round tablet.each tablet delivers: l-5-hydroxytrytophan 100mg (natural extract from the seeds of griffonia simplicifolia) tableted with: dicalcium phosphate calcium carbonate cellulose tablet coating (hydroxypropyl methylcellulose colour: titanium dioxide glycerin) silicon dioxide stearic acid magnesium stearate. disintegration time: less than 1 hour. suitable for vegetarians.usage & administration take up to 3 tablets daily half an hour before meals or half an hour before bedtime. start on one tablet and increase if necessary. 5-htp is best taken for periods of up to 3 months. 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. mild drowsiness may occur in some people. it is advisable not to drive or operate machinery until you determine how 5-htp affects you. consult your doctor if you are taking antidepressants. storage instructions to be stored in a cool dry place and protected from light. legal category food supplement.