I don't know, but if you find out, let me know. I do know that VitaLady sells samples on her website. They are pretty cheap. Check it out.
http://www.vitalady.com/ Hope this helps.
Carrie
I forgot, I think I heard someone say that GNC will let you try the samples in the store, or that if you buy something and don't like it they will let you return it. Give them a call.
Carrie
HI Fredrica,
I am going to do the 1/2 pkg. sugar free Carnation instant mixed with 4 oz skim milk and add 1/4 c instant non-fat dry milk. Have you tried it??
Vel