« Reply #15 on: November 29, 2015, 10:52:59 AM »
I take 600 mg of N-Acetyl-L-Cysteine a day. I started taking it for improving cognitive function and improving my neurological status (peripheral neuropathy) in addition to the mucous membrane benefit. I actually think it is possible that the N-Acetyl-L-Cysteine may also help with my mouth dryness. After all, the mouth is a mucous membrane.
Regardless, I have seen improvement in my mouth, nose, and cognitive function, some of which may be due to the N-Acetyl-L-Cysteine. Like I said, I do take a lot of supplements, several of which target the same problems, so it is a little difficult to know which supplement is the one responsible for the improvement. I tend to think they all help a little.
Here is a link to a study (UCLA Neurology Dept.) about reversing cognitive decline. N-Acetyl-L-Cysteine is one of the (many) supplements they recommend. I tend to agree with them that one thing is not going to significantly improve cognitive function but several things probably will make a significant difference.
http://www.impactaging.com/papers/v6/n9/full/100690.html

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ANA 1:160; SS-A+; MSG +; Plaquenil, Rituxan infusions, Restasis, HRT, Curcumin, Calcium, CoQ10, NAC, Resveratrol, Whole Omega, Omega 3, R Lipoic Acid, Acetyl L Carnitine, Krill Oil, Mag. Threonate, Bio-Collagen UC II, NAD+, & Vit A, B, C, D, E, K 1 & 2.