presentationa cream powder in a clear hard shell capsule.each capsule delivers: l-phenylalanine 500mg encapsulated with: capsule shell (gelatin) magnesium stearate silicon dioxide. disintegration time less than 30 minutes. usage & administration1 capsule daily. it is preferable to take amino acids with fruit juice or water rather than milk. an amino acid is best taken 1/2 hour before any meal or at bedtime.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 l-phenylalanine must not be taken by phenylketonuria sufferers (pku). l-phenylalanine should not be used with mao inhibitors (a type of anti-depressant medicine). this product is not recommended for children or pregnant or lactating women.storage instructions to be stored in a cool dry place and protected from lightlegal category food supplement.