If you live in the states there are a few companies that see both on there. For 40 bucks for 90 day supply.
Pills of any kind are not bioavaible very little if it gets to the blood stream because the stumic acid destroys most of it.
With liposomal it is in cased in fat and makes it past the stumic and absorbe into the blood by the small intestine.
Liposomal glutathione it what your body uses to detox it self of heavy metals and other toxins. Your body natural produces it but When you are sick for a long time your body will stop making it.
It is also a powerful antinflamitory. Liposomal vitamin c kills all kinds of bacteria viruses and fungus. Your body can not produce it by your body needs it to build colligen. Wicth means about every cell in your body.
Colloidal sliver can be bought on ebay in the gallons also only 50 bucks.
Making your own is not cost effective and not as good as the real stuff.
All three will help heal your leaky gut you HAVE to get on probiotics ASAP. Them 3 should help you heal enough so you handle the milk kefir.