Dr. Hana's Nasopure Intro Kit contains 1-8 oz Nasopure patented BPA free bottle, 4 buffered salt packets & detailed instructions. Each packet weighs 3.75 gm, and contains pharmaceutical grade sodium chloride & sodium bicarbonate. Each packet makes 4 oz of buffered hypertonic solution or 8 oz of isotonic (milder) solution. This kit makes a total of 16 oz of hypertonic solution or 32 oz of milder solution.