how are the nicotine levels calculated?

[mothervap3r]

Hello all
I have been vaping for a while now along with some friends. A question arose today on how the nicotine levels are calculated and how it works.
We just could not get our heads round it. May be someone can help us out here.
Ok so a 5ml bottle has 12mg of nicotine and a 30ml bottle has 12mg of nicotine so does that mean that 5ml from a 30ml bottle has less nicotine in?
we discussed maybe its like the % in a alcoholic beverage how every amount you pour has lets say 5% alcohol if that's the %age on the bottle.
well after a long discussion we were all left scratching our heads so any info will be greatly appreciated.

 

[Cloud Wizard]

Hi there,
it's actually a measure of concentration. So, 5ml of 12mg/ml actually = 60mg nicotine in total. vaping nicotine absorbs differently than smoking cigs. Cigs are always rated according to there absorbed nic but usually contain 10x as much (e.g. I smoked Marlboros rated at 1.2mg/cig absorbed = 12mg/cig total = 24mg absorbed for a whole pack of 20). Other difference is that vaping nic doesn't absorb into the body the same (most things I've read put it at ~40% of rated concentration).

So real-world: I used to smoke 1.5 PAD = 36mg/day absorbed. I vape about 3.5ml/18mg a day = 40% * 3.5ml * 18mg/ml = 63mg/day total or ~25.2mg/day absorbed. Even of they find out the absorption is 50% (31.5mg/day absorbed) I'd still be getting lees nicotine into my system than before.

Keep in mid this is not exact science as more research is required to prove this stuff

 

[Disk4mat]

I smoked 20 cigarettes a day at an estimated 1.5mg nicotine. 30mg's per day. Each cig gave me about 15 drags on average. I started vaping liquid at 24mg. I divided 15 drags out over an hour. Every 20 minutes I would take 5 drags. I figured this replicated my cigarette intake.

By the end of a day I would vape 1ml to 1.2ml of liquid a day. This was a good way to estimate how much I was vaping and regulate my intake in the begining.

Now I vape when I feel like and dont often over do it. A headache or dry throat is a good indicator your getting too much. After a while, you get a feel for it and it becomes second nature almost.

 

[Vapture]

>>> we discussed maybe its like the % in a alcoholic beverage how every amount you pour has lets say 5% alcohol if that's the %age on the bottle.

Yep ... 12 mg is 12mg/ml .. which is 1.2% (12/1000)

 

[mothervap3r]

thanks guys
i think i get it.might need to read cloud wizards post a few more times.
will show this thread to my buddies and see what they make of it or see if they can wrap their heads round it.
again thanks guys

 

[Spazmelda]

thanks guys
i think i get it.might need to read cloud wizards post a few more times.
will show this thread to my buddies and see what they make of it or see if they can wrap their heads round it.
again thanks guys

It's explained well above, but I'll give one other explanation just in case.

Concentration of juice is usually in mg/ml. That means the number of milligrams dissolved into 1 milliliter. If you vape one ml of 12 mg/ml juice, then you would have used 12 mg of nicotine (probably not all of that gets absorbed into your body). If you had 2 ml of the same juice it would contain 24 mg of nicotine, etc...

Imagine dissolving 12 mg of sugar into 1 ml of water. Then you would have 12 mg/ml sugar solution. You could also dissolve 120 mg of sugar into 10 ml of water or 1200 mg of sugar into 100 ml of water, and both of those would also make 12 mg/ml sugar solution. Same concept with nicotine (except it starts as a liquid, not a solid like sugar).

 

[Yves]

thanks guys
i think i get it.might need to read cloud wizards post a few more times.
will show this thread to my buddies and see what they make of it or see if they can wrap their heads round it.
again thanks guys

Simple way to put it.... There is 12mg of nicotine in each 1ml of liquid.

 

[RollandOfGilead]

Clearstream did a study which indicated nearly all of the nicotine was absorbed as the exhaled vapor contained <0.01%. the results were posted in lab report form here...
Utah Vapers - Clearstream Air Results
But it seems they have removed them for the time being "a professional doctoral review will soon be completed and presented to the global medical community. As soon as it can be officially presented to the medical community, it will be published here."

 

[Spazmelda]

Clearstream did a study which indicated nearly all of the nicotine was absorbed as the exhaled vapor contained <0.01%. the results were posted in lab report form here...
Utah Vapers - Clearstream Air Results
But it seems they have removed them for the time being "a professional doctoral review will soon be completed and presented to the global medical community. As soon as it can be officially presented to the medical community, it will be published here."

Well, they did not look at levels of nicotine in the users' blood or serum or urine. They did not show that it was all absorbed, just that not much of it makes it into the exhaled air. There is a difference. Several studies indicate that vaping does not usually produce cotinine levels anywhere near what would be expected if all of the nicotine was absorbed. There's a big thread about this from a week or so ago. I'll see if I can find it.

http://www.e-cigarette-forum.com/fo...312547-nicotine-absorption-contradiction.html

 

[mothervap3r]

Simple way to put it.... There is 12mg of nicotine in each 1ml of liquid.

thanx Yves
i got it now. just txttidid this info to one of my friends and her reply was...... "o"

 

[Canuck]

OK, cool... I figured that was how the nic levels worked but I'm glad you guys confirmed it for us. Thanks and Vape on!

 

[ziadaze]

Isn't this site great!

 

[Buxton74]

There is an e-cig company in the UK that takes R&D (research and development) very seriously, including blood plasma trials, HPLC analysis, vapour analysis and the like. They have concluded that 4.5% strength fluid is equivalent to a 15mg cigarette, 3.0% fluid = 10mg cig etc.

Their e-cigs are, in my personal opinion, poor. However, their e-liquid is excellent.

Am I allowed to post a link to their info?

 

[zoiDman]

Correct me if I'm wrong.

But I believe that 1ml of Nicotince weighs almost Exactly 1 gram.

So the highest possible mg level per ml is 1,000 (ie: Pure Nicotine).

This is where the percentage calculation comes from. 12mg/ml => 1.2% Nicotine per ml.

 

[Buxton74]

Correct me if I'm wrong.

But I believe that 1ml of Nicotince weighs almost Exactly 1 gram.

So the highest possible mg level per ml is 1,000 (ie: Pure Nicotine).

This is where the percentage calculation comes from. 12mg/ml => 1.2% Nicotine per ml.

Yes, this is the literal amount, and the is the way 99% of companies define their strength. The company I am referring to have conducted extensive research and rate their strengths as 'equivalent to' - I am aware that it is not the same, but thought i'd share this information as they seem very serious about R&D - as people have mentioned previously, nicotine absorbtion rates differ between smoke and vapour. I think this company in question are trying to reflect this in their fluid strength ratings.

Am I allowed to post a link?

 

[zoiDman]

...

Am I allowed to post a link?

You might need 20 posts to do links but give it a go and see what happens. You won't get in trouble.

 

[Buxton74]

Ok... here goes...

ECOpure E-Liquid 10ml bottle

Check their strengths!

I'm sure I read somewhere on their site that, according to their extensive R&D, these strengths more closely mimic the analogue strengths they claim, but I can't for the life of me find where I read it, but read it I did!

Like I said before, I personally think their e-cigs are of a very poor design, but I am a fan of their fluid, given that purity and safety are one of the 'grey areas' of vaping. I have never seen any other e-fluid producer take it so very seriously.

 

[zoiDman]

Ok... here goes...

ECOpure E-Liquid 10ml bottle

Check their strengths!

I'm sure I read somewhere on their site that, according to their extensive R&D, these strengths more closely mimic the analogue strengths they claim, but I can't for the life of me find where I read it, but read it I did!

Like I said before, I personally think their e-cigs are of a very poor design, but I am a fan of their fluid, given that purity and safety are one of the 'grey areas' of vaping. I have never seen any other e-fluid producer take it so very seriously.

Looks like the link worked....

One thing to keep in mind is that the Nicotine rating for Analogs is Different than the Nicotine Rating for e-Liquids.

An Analog's Nicotine is rated as the Average Amount of Nicotine that the Average Smoker Absorbs into their body per One Analog.

Whereas the Nicotine rating for e-Liquids is the Total amount of Nicotine per 1ml.

Where the issue comes up, and why the numbers don't seem to match, is that the Absorption Amount from Smoking is different than for Vaping. You can search Any forum and find a Huge Range of Percentages for what the Absorption Amount is when Vaping. Some say it is as Low as 10% and some say it is as High as 90%.

Another things that Mucks up the Issue is that e-Liquids don't contain all those Wonderful Chemicals that the Tobacco Companies put into Analogs. So when a person says they don't feel the same "Kick" from vaping, it might not be that they're not getting the same amount of Nicotine while vaping. It might be that they're not getting All those Chemicals that were Added to Analog Tobacco.

Personally, I look at the Strengths of the e-Liquids shown in the link you posted and they seem too high. The reason being is that Most people don't vape like they smoked. Most vapers take more "Hits" per day on a PV than they did on an Analog. So if the Nicotine Absorption Amount is Lower while vaping but you vape more during a day, it can balance out.

What I don't like though is if a Company is stating that an e-Liquid contains 15mg/ml of Nicotine where in actuality it contains 45mg/ml. This leads to Unnecessary Confusion. Especially for someone new to vaping.

Just tell us how much Nicotine is in 1 ml and we can do the rest.

 

[Buxton74]

Where the issue comes up, and why the numbers don't seem to match, is that the Absorption Amount from Smoking is different than for Vaping.

^- I think I may have mentioned that!

Yes, I am aware of everything pointed out. I was just saying, only as I was interested personally (and DO vape to replace analogues (very successfully so far may I add )) that the usual nicotine strength rating doesn't translate to that of analogues. I may well be in the minority here, but I may not be alone in my analogue replacement strategy!

I was not a chain smoker, and try not to be a chain vaper either, although I DO chain-vape on 18mg/ml e-fluids. I don't chain-vape with this crazy-strength 4.5% fluid - 7 draws and i'm done for a good while - cravings satisfied. I also read (again, can't seem to find it now) that while their fluid contains more nicotine, users use less of it less often with their research suggesting that overall nicotine ingestion over the course of a day is actually less!

I don't know how true it all is (I didn't carry out the research!), i'm just sayin'.

 

[zoiDman]

^- I think I may have mentioned that!

...

I believe that you did. As others have also.