I take 1/4 to 1/2 teaspoon about 4-5 times a day. It definitely has helped heal my ulcers. I still have problems which I think is from scar tissue. There is an interesting post about using Colloidal Silver and dmso here:
It's cheaper to buy the powder than in capsules. However some things A-Lipoic Acid you shouldn't buy in powder because it oxidizes too easily. Well, that's what I've read.