@Johnmac Good. With that liver you should have adequate vitamin A. Check out these cites:
http://www.ncbi.nlm.nih.gov/pubmed/26109103
Sci Transl Med. 2015 Jun 24;7(293):293ra103. doi: 10.1126/scitranslmed.aab2009
.Vitamin B12 modulates the transcriptome of the skin microbiota in acne pathogenesis.
Kang D1,
Shi B1,
Erfe MC2,
Craft N2,
Li H3.
....."To further understand the molecular mechanism, we revealed that vitamin B12 supplementation in P. acnes cultures promoted the production of porphyrins, which have been shown to induce inflammation in acne. Our findings suggest a new bacterial pathogenesis pathway in acne and provide one molecular explanation for the long-standing clinical observation that vitamin B12 supplementation leads to acne development in a subset of individuals."
http://www.ncbi.nlm.nih.gov/pubmed/27303708
mSphere. 2016 Feb 10;1(1). pii: e00023-15. doi: 10.1128/mSphere.00023-15.
Strain-Level Differences in Porphyrin Production and Regulation in Propionibacterium acnes Elucidate Disease Associations.
Johnson T1,
Kang D1,
Barnard E1,
Li H2.
This site suggests using a topical probiotic spray to crowd out the problematic bacteria:
http://paleoforwomen.com/acne-and-vitamin-b12/
"When people have a high level of B12 in their body, the bacteria can sense it and it stops producing as much B12," says Huiying Li, Ph.D., lead author of the study. But once
P. acnes shuts down the B12 biosynthesis pathway, the bacteria starts producing more porphyrins, naturally-occurring compounds that can lead to inflammation and acne. Put simply, "If there is excessive vitamin B12, the bacteria stop producing their own vitamins, and this causes inflammation," explains Jessica Wu, M.D., Los Angeles dermatologist, author of
Feed Your Face.
And a note of help from another forum about using topical vitamin C and salicylic acid to reduce the acne:
"I have had some terrible breakouts from b-12 supplementation, too. I know it’s kinda tacky to come to a page (I’ve been following this thread out of interest for years) and recommend a product, but: I have had really great luck using a product from Paula’s Choice. It’s the 25% Vitamin C spot treatment. It’s expensive, but it’s extremely effective (I have not done lasers, as I’ve had such great results with the vitamin C). I don’t know if you are vegan or not, but the product is. There’s also a 15% concentration of vitamin c by the same company that I also use as maintenance, with equally impressive results. I’d recommend pairing one of these products with one that contacts salicylic acid (she has many) for optimal results. In any case, if it doesn’t work there’s a 60 day money back guarantee for everything she sells, so you don’t have to worry about wasting money.
Dustin
Valerie Says:
July 6th, 2015 at 10:07 am Hi Dustin!
Thanks a million for your reply! I am willing to try a different product that comes recommend. (esp. seeing that they are currently offering a discount code.) If is very difficult to make a choice among the myriad of products available in the industry in general."
Oh yes, me wandering forefathers knew Celtic ways according to 23andme...