This is the instructions I received.
You should use RENS HH+ or RENS HH+ F. 1 drop for each 14 kilos of body weight (your body weight /divided by 14 = number of drops).
I have 72 kg, which is 5 drops.
For prevention you take 5 drops twice a day.
For healing you take 5 drops three times a day.
Important: you must not start with full dose!!! Start with 1 drop and each day add one additional drop.