We can confirm (after many rounds of testing by our manufacturer, ourselves and our clients) that when used in their exact amount, each bottle contains more than enough drops for the duration of detox; the 50 ml bottle allows for more than 50+ days and 30 ml bottle for nearly 40 days. It is essential to count each drop every time you administer a dose to ensure you use only 10 or 7 drops (depending on which day of detox you are up to). A full pipette or a rough estimate is not the correct dose- this may result in double or triple the drops needed, and is usually the incorrect method that causes people to run out of drops. We recommend dropping your detox drops onto a spoon to count each drop and ensure every dose is correct.