Here's a comparison video I did of two of the best clearomizers on the market. I don't think one is clearly better than the other. They're just really different products with different characteristics that stem from being single-coil bottom-coil vs dual-coil top-coil.
You can check out the detailed text comparison here.
What's your favorite clearo?
I'm quite happy with Vamo, it is just too big and heavy.
Provari is obviously cute and well made.
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"In the other report, a crossover trial of 40 ENDS-na´ve participants, smokers were assigned on different days to use an ENDS with a 16 mg or a 0 mg nicotine cartridge, a nicotine inhaler, or their usual brand of cigarette.7 In a PK study involving a subgroup of nine participants, the [B][I]16 mg ENDS yielded a maximum nicotine concentration in blood plasma of 1.3 ng/ml, the inhaler 2.1 ng/ml and the tobacco cigarette 13.4 ng/ml.[/I][/B] Importantly, the 16 mg ENDS, 0 mg ENDS and nicotine inhaler
"Nicotine pops look a lot like regular lollipops, but they smell a little weird and leave a sour aftertaste. Most contain either 2 mg or 4 mg of a chemical called nicotine salicylate and sell for about $3 apiece. They're made by independent pharmacists, who have long had the right to mix various active ingredients, usually following a doctor's orders, into preparations that aren't commercially available."