Answer:
Find me on body builders or in the drink aisle. What am I?
I let water fall on you while everyone else stays dry.
The more it dries, the wetter it becomes. What is it?
What can be cracked before it's used?
Squeeze me and I cry tears as red as my flesh, but my heart is made of stone. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.