Clear Care Contact Lense Cleaning Solution

Hi does anyone have an understanding why I haven’t been able to buy this specific brand (or any other that utilizes hydrogen peroxide) anywhere? I can no longer find it in any drug store, Walmart, or any other retail outlet or online anywhere. Life Brand had a similar one but none of that any where as well. This is the solution that you put your lenses in a basket with the solution and it fizzes and you can’t wear them for 8 hours while it does it thing. I found this solution was the best of the best
Thanks.