Hey I'm looking into this for an anti-bacterial agent, is it possible that your immune system might fight the anti-bacterial properties of manuka honey and deem it useless over time?
No
manuka honey won't and can't become less effective over time. The way
manuka honey works is that when it is in contact with bacteria it produces hydrogen peroxide that kills bacteria. Hydrogen peroxide on your skin sounds scary but its absolutely fine and is in such tiny doses its no problem. If you were to dip your face to dip your face in hydrogen peroxide that would be seriously bad! (don't try it....).
All
honey is antibacterial to an extent due to the sugar content (bacteria die in the presence of to much sugar); but
manuka honey has been found to have a unique
manuka factor (UMF) which makes it much more antibacterial and is given a grading. The higher the UMF the stronger the antibacterial effect. I would say anything UMF 10 or up is fine for acne.
manuka honey has also been found to have added benefits of reducing inflammation and redness, promoting healing, reducing scaring and reduce wound pain. All this evidence is from hundreds of reliable clinical trials on wounds infected with super bugs resistant to antibiotics, pressure sores (wounds caused by pressure that often never heal or come back), surgical scars and burns. Its regarded by many to be the perfect all round wound healer as it does everything you want.
As with any antibacterial you dont want to kill all the bacteria on your skin all the time, as its normal to have bacteria on your skin and shouldn't cause problems most of the time. I do get spots and what I find really works is using
manuka as a face mask maybe once a week, less or more depending on my skin. Smear it on and leave it on for maybe 30-60 mins and gently wash of with warm cotton wool. Or you can just dab it on spots in between. Using to often wont let the normal bacteria grow back. Its just trial and error what right for you. My skin is a thousand times better than it used to be. I hardly ever get spots and when I do get one its heal very quickly without a mark. If I dap with
manuka early it usually goes away before its appears properly.
Taking orally can help digestion and stomach ulcers but not acne.
Its incredibly rare to have a skin reaction to
manuka honey and its very soothing and gentle. Its certainly worth trying. I love
manuka and use its for cuts and grazes instead of antiseptic works much better and doesn't sting!
Amanda (I've a biochemist who researches new medications and find natural stuff very interesting)