Buying lactobacillus - is there a "pure" form?

[shortbus]

There's a million diet supplements offered as LAB, but many seem to be made with many other ingredients.  The White Labs #677 seems to also have a strain of yeast (?) for alcohol production (?)... for brewers. Is there a "pure" LAB culture available?  
 
I know many are a fan of the White Labs product.  Is it the 677, or a different one?  Thanks.

 

[John1234]

Steal it from the air?

 

[FGpepperguy]

677 is the one.  I use ultimate flora in ferments, and after eating hot peppers....  
 
http://www.amazon.com/Renew-Life-Ultimate-Critical-Billion/dp/B000CMKC5Y