What preservatives does IN use and why?

What preservatives does IN use and why?

We use Sodium Benzoit, Potassium Hydroxide. We choose these preservatives because they generally rank lower in toxicity than conventional preservatives. The rank a 3 on toxicity in the skin-deep database. They are free from any byproducts or contaminants known to cause cancer or reproductive toxicity as listed under Prop 65 State Drinking Water and Toxic Enforcement Act.