Only Natural Pet B.S.S.T. - BSST Herbal Supplement Formula to Support Immune System HELP SUPPORT THE IMMUNE SYSTEM - All-natural herbal formula designed to help maintain cellular health, purify the blood and help the body eliminate destroyed tissue and toxic residues. HIGH QUALITY INGREDIENTS - including Burdock Root, Sheep Sorrel, Slippery Elm Bark, Turkey Rhubarb Root, Blessed Thistle, Watercress and Red Clover. The careful blending of these herbs helps them interact synergistically for more beneficial effects. HIGH QUALITY INGREDIENTS - including Burdock Root, Sheep Sorrel, Slippery Elm Bark, Turkey Rhubarb Root, Blessed Thistle, Watercress and Red Clover. The careful blending of these herbs helps them interact synergistically for more beneficial effects. MADE IN USA - In a FDA approved facility using human-grade ingredients. Available as a 4 oz liquid with dropper included. SATISFACTION GUARANTEE - Only Natural Pet products always include a 100% Satisfaction Guarantee. Only Natural Pet uses only the highest quality ingredients in our products. Providing you & your furry friend the highest quality products is our top priority.