Kroeger Herb SPK Formula (formerly Spiro Kete) Description: Kroeger Herbs Spiro Kete with Avoiding exposure to insects includes using caution while being one with nature. This combination encourages your body's healthy conditions. An asset to hair and clothing checks after a jaunt in the woods. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.