after buying a couple (2-3) times at a local drug, i loved it and worked great for about a month or two. then, i bought another one and it was dried out when i opened it and tried to use it. thinking it was just a dud, maybe it was just this one time occurrence, i bought another one that dried out in less than a month. i bought a new one about a week ago that dried out. so i tried one more time, bought a new one, opened it and it wouldn't draw. so basically, out of 7-10 purchases of this product, at least 4 were completely worthless.
at first it was worth the money but spend a few more dollars on a different product.