For others, SAM3 is a product name for manufacturer Danisco
for one of their several P candidum's in their Choozit product line.
Myrrh, good question, I wrote some info here
on six different Choozit P candidum strains that I found which gives some help.
Also, in our Library there are product data sheets
for four of the six that should be of use.
Also if you search on SAM3 (or the other names) you'll find it discussed in several threads, I haven't looked at them but hopefully one gives some pro's & con's type info on it.