Iwrote to them asking for a price and the qty of the liquid ..here is the reply
"The cost will be € 12,80 for a bottle off 1 liter and you need also a dose capsule with it and that will cost € 4,85. all the cost are ex. transport".
But what I would say is ..if you have any questions, the Dutch usually have very good english both spoken and written and if you have questions about their products just email or call them.
Cheers
Dave.