ingredients : alchohol,oil of lemon and water, tried mixing it with pg vg menthol seems ok coz my menthol is too strong and has a bitter after taste ,after the mixing the essence of lemon was present just wanted to know if its ok or safe plus how will it affect the atty...so far it produced a good vape my ratio is 6 drops lemon and 18 drops pg vg menthol ,thanks