Open AccessThe Impact of E-liquid Propylene Glycol and Vegetable Glycerin Ratio on Ratings of Subjective Effects, Reinforcement Value, and Use in Current Smokers
Author(s) -
Tracy T. Smith,
Bryan W. Heckman,
Amy E. Wahlquist,
K. Michael Cummings,
Matthew J. Carpenter
Publication year - 2019
Publication title -
nicotine and tobacco research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 113
eISSN - 1469-994X
pISSN - 1462-2203
DOI - 10.1093/ntr/ntz130
Subject(s) - reinforcement , psychology , preference , nicotine , audiology , toxicology , medicine , statistics , social psychology , mathematics , psychiatry , biology
Electronic nicotine delivery systems (ENDS) vary on a wide range of characteristics that may affect reinforcement value and use. One characteristic is the ratio of two solvents commonly used in most e-liquids: propylene glycol (PG) and vegetable glycerin (VG). The goal of this study was to understand how PG/VG ratio affects subjective effects, reinforcement value, and tobacco use patterns among current smokers who try using ENDS.