VG70/PG30 Base 06mg. - 10ml.
If you just want 10ml. PG/VG base with 6mg. nicotine, you can simply unscrew the lid and then add up to 2ml. flavouring (20%) directly into the bottle. Then shake the bottle. It's easy!!
The liquid should ideally mature for a few hours/days before use.
Normally, pg/vg bases are mixed with about 10% Flavouring (which is pg based) to add taste.