The product pages state that the grapefruit seed extract is just there as a preservative. Presumably it does have some anti-bacterial/anti-viral properties, as a preservative, though the significance would depend on the amount (it is the last listed ingredient, which suggests a tiny amount - but hard to guess how significant this might be for the product efficacy).
"Given the more transmissible variants we now face, this is critical now,тАЭ said Professor Mark Cannon, Feinberg School of Medicine, Northwestern University. тАЬSecond, using electron microscopy, we have visual evidence showing that xylitol and GSE counters the virus. The GSE kills the virus, while the xylitol prevents the virus from attaching to the cell walls. The image (attached) shows SARS-CoV-2 viruses outside the cell and never attached, thereby preventing infection,тАЭ added Dr. Cannon. The study postulates that xylitol acts as a decoy target for SARS-CoV-2, preventing virus attachment to the core protein on the cell wall."
You could probably create your own saline/xylitol solution, but you have to be careful about sterility and doses. Too much salt or xylitol will injure the nasal passages and sinuses.
You can get sterile saline quite cheaply at any pharmacy, in the contact lens section, already isotonic concentration. (I got some to make up a H2O2 nebulising solution).
It's about twice the price in Oz, unfortunately.
https://www.megavitamins.com.au/collections/brand-xlear/products/xlear-xylitol-saline-nasal-spray-fast-relief-1-5-fl-oz-45-ml
Looks like Xlear is just xylitol in a saline solution - you could make it yourself very cheaply!
The ingredients are...Purified Water, Xylitol, Saline, Grapefruit Seed Extract.
Grapefruit Seed Extract is the antiviral ingredient.
Xylitol has antibacterial properties.
The product pages state that the grapefruit seed extract is just there as a preservative. Presumably it does have some anti-bacterial/anti-viral properties, as a preservative, though the significance would depend on the amount (it is the last listed ingredient, which suggests a tiny amount - but hard to guess how significant this might be for the product efficacy).
"Given the more transmissible variants we now face, this is critical now,тАЭ said Professor Mark Cannon, Feinberg School of Medicine, Northwestern University. тАЬSecond, using electron microscopy, we have visual evidence showing that xylitol and GSE counters the virus. The GSE kills the virus, while the xylitol prevents the virus from attaching to the cell walls. The image (attached) shows SARS-CoV-2 viruses outside the cell and never attached, thereby preventing infection,тАЭ added Dr. Cannon. The study postulates that xylitol acts as a decoy target for SARS-CoV-2, preventing virus attachment to the core protein on the cell wall."
https://www.aestheticsadvisor.com/2021/09/xlear-nasal-spray-covid-19-study.html
The article contains a link to the study preprint, which does not contain the quote.
Thanks for that info! ...noted & copied.
You could probably create your own saline/xylitol solution, but you have to be careful about sterility and doses. Too much salt or xylitol will injure the nasal passages and sinuses.
Xlear is available in Australia.
You can get sterile saline quite cheaply at any pharmacy, in the contact lens section, already isotonic concentration. (I got some to make up a H2O2 nebulising solution).
A google search brought this up: https://welllifefm.com/wp-content/uploads/2017/04/Nasal-Sinus-Rinse-Recipes.pdf
I think it might be worthwhile to start with an actual bottle of Xlear, as the dispensing bottle might be the hardest thing to find!
And yes, it is available in/for Australia - I see that iherb have it, at a reasonable price too.