not trying to be a dick but try searching next time, its been covered alot. Ive tried just about every cleaning product and its by far the BEST!!! you can re-use it, its eco friendly, smells decent, no shaking, and non abrasive! just soak for at least 15 mins, but the longer the better. Most head shops don't carry it, but you can get it online and one bottle will last a while. I bought 3 bottles about 6 months ago and am still using those 3