I use the Jarrow TMG crystals. I have a little scoop that I use. They are as effective or more so than the tablets I used to take. The crystals are like very fine salt and I like the taste of them. They melt on your tongue. The tablets were large and absorbed moisture. I have not had any problem with moisture with the crystals. Also, the bottle of crystals is small and can be easily carried in a purse.
Come on cora, why use that brand when Just 32 hours before your original post I made the topic "Cheapest source of TMG (powder)"
Lonefeather the cheapest I could find of jarrow TMG powder was 6.95$ for 100 tablets each 500mg. And that was after searching... The TMG powder by purebulk cost exactly 4.4 times less (even more savings if you buy the jarrow powder for more than 6.95 per 50g. Do you realize how much of a ripoff that is, for the amount you get here for $15.75: http://purebulk.com/betaine-anhydrous-tmg
which is 500g, it would take $69.50 for the jarrow. It's the exact same powder.