daltons, and B12 hydroxocobalamin is
1346 daltons.
Now the
500 dalton rule for transdermal absorption states that molecules above
500 daltons cannot get absorbed through the skin. So B12 will not like get absorbed on ordinary skin.
Similarly,
the rule for sublingual is that absorption only occurs with molecules less than
500 daltons.
It has been
stated that the nasal mucosa can absorb molecules up to
2000 daltons, so by snorting pure B12 powder intranasally, or using a B12 nasal spray, you should be able to absorb quite a bit.
I've been experimenting with stimulating the upper repiratory epithelium using nasopharygeal (NPG) swabs, long q-tips, regular q-tips....and have had some pretty good results for what I was looking to accomplish, but thats another story.
I read this and since I'm in the lab right now, I had a few extra tools at my disposal but still nothing fancy really.
I have both methyl and hydroxo sublinguals at work....so, I thought I'd experiment with intranasal.
My Methyl cobal is tart and as I expected it has citric acid. Probably a lot by the taste of it.
My hydroxo, however, is pretty benign, with sorbitol, mannitol, and natural cherry flavor....and then of course the nuisaince binders...
So, anyway, I pulverized and dissolved a tablet in a very small amount of sterile saline (I picked saline, i'm sure water is fine) in a clean (mine was sterile) plastic container and gave the mixture pretty constant agitation.
The colorless liquid changed to a dark pink color. Probably give this process 10 minutes total.
I transferred to another container and centrifuged at 3500 rpms for a minute hoping the undissolved remnants would go to the bottom of the test tube but to no avail...the binders just don't want to cooperate that way.
So, I just thought of the old college way to get the solids out of the solution and use filter paper
I wasn't picky and was in a bit of a hurry so I just used kleenex though I'm sure real filter paper or a coffee filter would technically be better. Still it did the trick as the solution that passed through was completely pink and clear to the naked eye.
Next, I dipped my 6 inch polyester tipped swab into the solution and threaded the swab up to my left nasopharynx as I have much more room in that nostril. From doing my other experiment, I have become very familiar with what the difference in sensation feels like when the applicator is touching just the regular mucosa vs the NP. When I reached the top of the NP (about 70 mm in my case) I rotated the swab, while maintaining contact with the NP epithelium, 360 degrees 3 times clockwise and then 3 times counter clockwise.
I was looking at a computer screen at the time and almost instantly, the colors became sharper and I felt an energy rush (that I'm still feeling here 30 minutes later).
I then repeated the process in the right nostril.
I have no doubt I got instant absorption unlike I have ever felt.
I used:
this version of B12
https://www.amazon.com/Source-Naturals-HydroxoCobalamin-Vitamin-Flavored/dp/B01BOWOW4M/ref=sr_1_fkmr0_1_a_it?ie=UTF8&qid=1524715784&sr=8-1-fkmr0&keywords=source naturals hydroxocobalamin
I had some things in the lab to make things a little easier but this can easily by done at home with basic stuff.
I'm not even sure it is required to go all the way to the NP, but the feeling definitely surged when I got there. For folks that are leary about maneuvering to their NP with a Qtip if they are unfamiliar with the anatomy or have extremely tight airways in the nares, I have been working on other ways.
Like:
We have various NPG swabs at work that are much, much skinnier than a q-tip type device like what I just used. I used the Q tips because I prefer them as they cover a larger area because the end is bigger (but I am used to doing this).
So I found the almost exact NPG swabs from work here on Amazon...each individually wrapped Qty 100 for about 15 US dollars. We use them to collect flu specimens. I'm positive they are the same ones . Even same company.
https://www.amazon.com/gp/product/B007V53GH6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
The pros to the NPG swab: easy to navigate the nasal passage and get around those pesky enlarged nasal turbinates.
The cons to the NPG swap:
since the shaft and foam tip are very, very skinny...when you reach the top of the nasopharynx..it WILL get your attention though I wouldn't say painful unless you just ram into it. The NP should be approached at a snails pace until a person is familiar...and also, should be done while seated. Might be unpleasant to lose balance for a moment with something stuck up your nose.....but you will become familiar with what the place feels like and apprx how deep your NP is...this skinny swab might cause a sensation of wanting to sneeze that rarely happens with something with a larger end like a cotton, rayon, polyester tip applicator. I suppose if you can't fight it off for a moment go ahead and withdraw the swab during your couple of sneezes.
Its been about 45 minutes now since I did this procedure and I feel about normal again except maybe a little lighter.
---immediate effect
-------colors brighter, edges sharper
-------energy rush...not jittery but maybe only a couple of clicks below what I would describe as anxious.
-------felt, awake, focused
-------increased heart rate
-------sensation to go pee lol.
So, that was from a 1 mg tablet dissolved in apprx 1-3 mL of saline/water and then the binders filtered off. Less water will make a stronger concentration/less soluble, while more water will increase solubility/less concentration.
Concentrations can be easily adjusted as needed.
I would expect an NPG swab to be lesser due to the decreased coverage (smaller end)
Remarks:
After doing this procedure I feel like I've never absorbed 12 in my life although I know I have plenty or wouldn't be here....lol. But, seriously, this stuff is for real!
Disclaimer: This is my own experience and observations and not medical advice.
Edit: I just replicated the same procedure with Adenosylcobalamin from Seeking Health. Just wanted to comment that the their lozenge is exceptionally clean when it dissolves. I might be purchasing all my B's from them in the future.