Sort jernoxid (E172), shellak, vandfri ethanol, propylenglykol, isopropylalkohol, butanol, koncentreret ammoniakopløsning, kaliumhydroxid.
Capsules are printed with black ink that contains black iron oxide (E172), shellac, anhydrous ethanol, propylene glycol, isopropyl alcohol, butanol, concentrated ammonia solution and potassium hydroxide.