In Blu EJuice Propylene Glycol is not listed as an ingredient. Therefore, the e-liquid on board must be of the 100% vegetable glycerin. To thin it out they add distilled water.
Ingredients: Distilled Water, Nicotine, Natural & Artificial Flavors, USP Glycerin, Citric Acid
Electronic Cigarette Cartridges | E-Cig Flavor Cartridges
Juice Components
Flavoring usually about 15%- could be higher or lower depending on the flavor used.
PG enhances flavor, TH and lung hit- some of us believe it to be a throat irritant- water like
VG= vapor and can mute flavor- thick
Nicotine- TH, lung hit and our need for nicotine. The MOST important ingredient in regards to TH and lung hit.
Standards in the industry are 80/ 20 or 70/ 30 PG/ VG.
Most begin at 18 or 24 mg nic. I started much higher but that's just "me". Now that I'm vaping very low nic I need to adjust my PG level higher to achieve a TH and lung hit.
If you're happy with the flavors and the nic level you could buy some of the same juice/ same nic level in pure VG and mix with the PG juice.
From the SI company rep, Imagine, here at ECF
"They are mostly PG with some VG about 90/10 "
Post # 2
http://www.e-cigarette-forum.com/fo...02288-smokeless-image-carts-liquid-pg-vg.html