We sure do!
Our Free Sample thread can be found here-
^^3 Controlled Labs FREE Samples (White Flood Fruit Punch included)^^
it just has some simple directions like signing up for our forums and posting in a thread. We also include free samples of a few of our other products as well.
Your other option is to add a free sample packet with one of your Nutraplanet purchases- providing they have stock in the sample packet at that time.
Finally, Green MAG doesnt contain a large dose of Tyrosine. Its added more to boost synergy between the other ingridients.
Let me know if theres anything else I can help you with! =)