Just bought the vet option 1. But throat hit not there.
Any suggestion to improve it ?
Base Liquid Differences
PG - VG - PG400
1. PG or propylene glycol or propane-1,2, diol
PG is the most common refill liquid base material, normally used with 10% to 30% VG.
It is virtually inert in the body and can even be injected into the bloodstream without effect (and it is: it is the carrier liquid for drugs like diazepam that don't mix with water).
It is a powerful bactericide and virucide, and has been used in hospital air spray projects.
There is a vast body of research on it going back 70 years that proves it is safe for inhalation.
PG is usually the main constituent in disco fog machines. Due to strict employee health regulations that cannot be subverted, it is approved as safe for extended exposure for employees in discos, bars and theaters.
Because it is made from non-organic sources (via chemical processes) allergies are not reported.
Intolerance is normally restricted to drying-out affects on the throat.
It presents flavors well and has the best TH of the three choices. (That said, some prefer PG400 as it is smoother on the throat)
Some people are sensitive to PG. Most commonly used base liquid in the market today.
2. VG or vegetable glycerine or glycerol or propane-1,2,3, triol
VG is an alternative carrier liquid, though more commonly used as an additive to PG liquids.
It is more viscous (thick) than PG. If used as the sole base material, it will need diluting with 10% - 20% DW (distilled water). Other additions seen include alcohol and EM (ethyl maltol).
There is less research on inhalation. It is thought to be less inert than PG, and to be treated by the body as a complex carbohydrate - that is, metabolized by being broken down into carbohydrates and/or excreted.
VG can be made in around five different ways, and for this reason there are a number of people who may have an allergy or intolerance for one or more brands. It can be made from animal or vegetable sources, or as a byproduct of biodiesel production, or synthesized and made in a similar way to PG and PEG, from other chemicals. Vegetable sources include coconut oil and palm oil.
VG is a mild bactericide but nowhere as powerful as PG is, so preservatives such as sulphites may be added to it to prevent deterioration; therefore, there are questions such as: are the additives the cause of intolerance, or indeed whether VG with additives should be used for inhalation.
VG produces more vapor than PG.
It produces less TH and does not present flavors as well.
Much thicker than PG and is derived from vegtables. Lesser allergic reaction compared to PG. Harder draw and might clog atties at 100%.
3. PEG or polyethylene glycol
PEG400 or PG400 is a low molecular weight grade of polyethylene glycol. It is a clear, colorless, viscous liquid. Due in part to its very very low toxicity, PEG 400 is widely used in a variety of pharmaceutical formulations.
This formulation appears to be chosen as it has the right viscosity, as it can be thinner, thicker, or even in the form of a wax.
As far as we know there is little research but it cannot be toxic as it is used in foods and medicines.
It is said to present flavors better than any other base liquid.
Because it handles flavors so well it is used by several of the major cartomizer-only (2-piece ecig) firms that mainly sell to first-time buyers, as it works well in cartos.
Not recommended for high voltages as some users report of burning taste.