VG50/PG50 Base 06mg. - 10ml.
If you just want 10ml. PG/VG base with 6mg. nicotine, you can simply unscrew the cap and add up to 2ml. aroma (20%) directly into the bottle. Then shake the bottle. It's easy!!
The liquid should preferably mature for a few hours/days before use.
Normally, pg/vg bases are mixed with about 10% Aroma (which is pg based) to add flavour.