I bought this because I had some old silver jewelry that had tarnished.  I was going to donate them too, after I cleaned them up.  Just a few seconds of being immersed in the liquid and some rubbing with a soft cloth and voila!  Almost brand new.  If I can upload pictures to this review, you'll be able to see the difference.  The only downside is that the warning label says that the product contains ingredients that causes cancer.  Luckily I read this first and used gloves.