Rubbing the product on the testes is a personal choice... testes have thin skin so they absorb things very well so it may allow the product to work a little better.
AAAHHHAHHAHAHAHAH, LOOOLOOOLOLOLOL.... You are TOO funny man!!! THat just cracked me up!!! AHAHAHHAHAH..... Gods...I feel like CARTMAN I'm laughing so hard!!!
Oh, uh...were you being SERIOUS dude???
BAAAHHHHAHAHAHHHAHHA...
Oh...by the way, I use it on MY testes...only because I love rubbing my balls so much!!! HAHAHAHAHHAhhh