Why is non-invasive sterilization such a momentous breakthrough in the humane treatment of animals? Well, to answer that, we should tell you a little bit more about how it works.

Esterilsol™ is a Zinc Gluconate with L-Arginine compound that sterilizes the animals with just one injection in each testicle. The effects are permanent and reliable. And, most importantly, virtually painless. Castration, on the other hand, involves surgically removing the testicles, which can cause a host of related issues, pain being one of the many. US FDA approval expected in early 2012.

Ark Sciences also now owns all intellectual property rights to Neutersol, the first US FDA approved injectable sterilant for dogs.

Here are answers to frequently asked questions about Esterilsol™ and its precursor Neutersol