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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: Nicotine Tob Res. 2017 Apr 1;19(4):484–492. doi: 10.1093/ntr/ntw192

Table 4.

Estimated Caffeine Exposure From Using Electronic Cigarette (E-cigarette) Products

Flavor Average (mg/g) 5min (mg) 20min (mg) Daily (mg)
Niquid Chocolate 0.011 0.001 0.002 0.033
JuicyVapor Chocolate 0.004 0.000 0.001 0.011
Azure Vaping Chocolate Caramel 0.003 0.000 0.001 0.010
Niquid Summertime Tea 0.028 0.002 0.006 0.083
JuicyVapor Ginger Peach Green Tea 0.034 0.002 0.007 0.101
VaporCast Cappuccino 0.347 0.022 0.076 1.041
Azure Vaping Coffee n′ Cream 0.140 0.009 0.031 0.419
Blu Java Jolt 0.242 0.015 0.053 0.726
Premium Coffee 0 mg NIC 0.004 0.000 0.001 0.012
eSmoke Morning Coffee 0 mg NIC 0.161 0.010 0.035 0.484
eSmoke Morning Coffee 11 mg NIC 0.173 0.011 0.038 0.519
eSmoke Morning Coffee 16 mg NIC 0.171 0.011 0.038 0.514
NEWhere Energy Vape with Taurine 0.831 0.052 0.182 2.492
Vapour Labs Energy Shisha 0.031 0.002 0.007 0.093
StlVapor Cola 1.154 0.072 0.253 3.463
StlVapor Power 0.759 0.047 0.166 2.277
StlVapor Aktiv 1.202 0.075 0.263 3.605
High Voltage Resistor 0.137 0.009 0.030 0.412
City Vapes Night Crawler Energy 1.691 0.105 0.370 5.072
City Vapes Side Kick Energy 2.016 0.125 0.442 6.049
VaporBoost Stamina (0.30% caffeine) 1.695 0.105 0.371 5.085
Vaporrenu Burley (80 mg caffeine) 3.736 0.232 0.818 11.208
NutriCigs Cherry Energy 9.295 0.576 2.036 27.886
Bootleg Vapors Coffee (200 mg caffeine) 0.703 0.044 0.154 2.109

Exposure is estimated based upon e-liquid consumption in experienced vapers from Farsalinos et al.35,36 which found an average consumption of 62 mg after 5 min, 219 mg after 20 min, and 3 grams/d.