We have a similar thing here in the UK, Cow&Gate Goodnight Milk. I received a free sample one day, and sent them a letter asking for medical feedback on the stuff. The only answer I got was a letter saying "Thank you for showing an interest in Goodnight Milk! Here's a free sample!" which made me laugh with despair.
Never used it. I give him formula because I could not breastfeed (No lectures, please - I tried everything to boost my supply, and nothing helped. I still beat myself up over it, and I don't need a helping hand

), not to get DS to STTN.
The lack of informative response really scared me, though.