Clear Flush™ capsules are the fastest and most convenient natural body cleanser available. It is an actual flush. Effective within 90 minutes of taking the six capsules, Clear Flush™ will cleanse the blood, kidneys and liver for up to 5 hours. This product is 99% effective when used as directed. If your exposure to toxins has been light Clear Flush™ capsules will cleanse the body permanently. For those with high toxin levels, the product will cleanse the body for approximately 5 hours. After that time, those toxins which are typically stored in fat cells will have re-contaminated the body fluids to measurable levels. Avoid exposure to all unwanted toxins 48 hours prior to using Clear Flush™ capsules. Unwanted toxins include alcohol and any kind of second hand smoke (yes, even tobacco). Other items to avoid are golden seal, vitamins in large quantities, virtually all over-the-counter medications, and high fat, greasy foods.