I'm on animal stak It sayes on the botle of testicle shrinkage, is it only the testicles or the penis aswell. Answer::Zakkie, As far as my knowledge stretches it is mainly testicular shrinkage ...

you asked about animal stak, the company making it is called Universal Nutrition. They put this warning: WARNING: This product contains steroid hormones that may cause breast enlargement, testicle ...