I vaped it right away! It was KILLER, but it kept getting better!! After a few weeks OMG better than KILLER!! Thank you, Dox_au!!!!!!! (notes at the bottom of review) Teo22 I also used VG 100%, w/nicotine & no nicotine. I also round flavors to 20%, so I used 15% of distilled water or it would be to thick. Most of you use PG so it would not be necessary for water. Teo22