First, it is striking that the German and the English "instructions for use" is different: If the German is virtually nothing in the English a dose recommendation. I personally recommend to check on the internet about a dosage and the duration of use (creatine cure).
A measuring spoon is missing.
I solve it in fruit juice on, it is tasteless and thus for me the best way of taking.
As for the purity of the product must be able to rely on the testing / quality seal.
The price is about 8 in order.