Apparently there are some other nasties in e-liquid, which Halo tests for-
Award-winning Halo Cigs, makers of the awesome Triton tank System conducts third party testing for all of their e-liquids.
Company spokesperson, Jason Del Giudice told me Halo tests not only for Diacetyl and Acetyl Propionyl, but also Acetoin, Arsenic, Cadmium, Diethylene Glycol and Nitrosamines.
“We run our e-liquids through third party testing every 3-6 months to ensure there are no changes on our suppliers side.”
Halo has a relatively small line-up of e-liquids compared to the other brands featured in this post. They do have some sweet flavors such as Belgian Cocoa, Malibu and Shamrock, but for now, there’s no custard or cream flavor.