I have a French roommate (when I'm in the DC area on business) who's a fiend for this Regilait milk-product-in-a-tube stuff. She recently ran out, attacking the remnants of her last crumpled tube like a girl trying to earn her way into the porn industry. Apparently, she knows of no way to purchase this product in the US, and only gets to stock up during infrequent trips to France.
Since I'm home in Manhattan on weekends, I figured I'd see if anyone knows of a store that may stock this particular product. It's a toothpaste tube that I believe is filled with sweetened condensed milk. She bought me a huge box of chocolates and various truffle-related ingredients during her last trip to Paris, so I figured locating this goofy junk is the least I can (at least try to) do.