Has anyone been able to find any or is it pretty much out of stock for good? Are there any good replacement alternatives to this product to treat or prevent BD?
Wizard Coin Supply is the exclusive distributor. It is usually out of stock. Sign up for their notification and buy it when informed it is in stock. That has worked for me in the past, I don't know if it still works.
A thought a guy here named @BadThad was the manufacturer of it. Not sure if he is still producing it. I have two little bottles I use sparingly.
I don't think Verdicare is a good treatment for Bronze Disease. Here's what I recently wrote on another thread in answer to a question about BD: "Removing bronze disease can be done easily and inexpensively. First, use something pointy and soft, like a toothpick or locust thorn, to remove all the powdery deposits you can. Then buy a gallon of distilled water (DW). Soak the coin in around 1 to 1 1/2 cups of distilled water for a couple of days, remove the coin, blot dry and then place it back to soak again in fresh DW. Repeat this process for somewhere between 2 weeks to a month. The longer you do this, the better your chances of getting it all out the first time. At this point, some people bake the coin at around 200 degrees Fahrenheit for an hour or so to drive out all the moisture, but I just let it air dry. Let the coin sit out someplace where you will see it often for about 3 months or so to make sure that the bronze disease does not return before placing it in a holder and adding it to your collection. About 90% of the coins I've treated this way have been cured after one of these treatments. A few coins needed a second treatment of the exact same process. I've never had a coin that needed a third treatment." Some people use sodium sesquicarbonate to treat coins with BD. I've never used it because distilled water soaks have always worked for me, but if you're interested, here's a tutorial written by CT member Theodosius: https://www.cointalk.com/threads/co...arbonate-for-bronze-disease-treatment.330033/
I contacted @BadThad. He has a limited Supply available on a first-come first-serve basis. I do a preventative treatment on every coin I own with Verdi care. I had the small bottle and after 3 years I was running low. I just ordered the super size bottle.